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10+ Simple Science Experiments for 3-4 Year Olds

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My pre-schooler Brady loves it when I tell him we are going to do science experiments .  He gets so excited and totally lights up.  They’re just so much fun!

I try to find science experiments I can do with him that are simple and don’t take a lot of time and patience.  We all know patience is not a virtue of a four-year-old.

I like them to only require a few ingredients and be completely safe and hands-on.  Here are my most favorite experiments I’ve found for a three to four-year-old.

10 Simple Science Experiments for 3-4 Year Olds

10 Simple Science Experiments for 3-4 Year Olds

(affiliate links included throughout – see  my disclosure  for more information – thanks for your support) 

1.  Oil and water don’t mix , but what happens when you add this special ingredient?  From Play Trains.

Oil-and-Water-Discovery-Bottles - kid science experiments

2.  Test your kids hypothesis on what would happen if they stepped on raw eggs .  They will love this one!  From Housing A Forest.

kid science experiments

3.  You can blow up a balloon with a combination of soda and candy.  So cool!  From Learn Play Imagine.

kid science experiments

4.  This exploding baggie experiment is a twist on the classic baking soda and vinegar reaction and is super simple.  From Coffee Cups and Crayons.

5.  Exploding milk is one of the most fun and simple kid science experiments and you only need three kitchen ingredients.  From Laughing Kids Learn.

kid science experiments

My friends just wrote a brilliant science books for kids that we just adore! You’ve gotta check out The 101 Coolest Simple Science Experiments .


6.  How do the ice trucks melt snow after a storm?  This is a great demonstration.  From The Artul Parent.

7.  Explain to your kids how sound waves work with this classic experiment.  From We Made That.

8.  Explaining the concept of air pressure to preschoolers can be tricky but this easy experiment shows it perfectly!  From Kids Activities Blog.

9.  Explore how plants “drink” with this experiment showing water moving through a leaf .  From Buggy and Buddy.

10.  Did you know you can make ice grow ?  Here’s how!  From Teach Preschool.

Amazing Science Kits For Kids

Science Kits

Kitchen Science Kit   |  Magnet Science Kit   |  Solar Science Kit   |  Grow A Maze Kit

Want More? Here’s Art Projects for 3-4 Year Olds

Art Projects for Kids

Liz is a just a mom trying to keep it real about how little she sleeps, how often she gets puked on and how much she loves them. You can find her here every day writing about real-mom moments.

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March 19, 2015 at 4:04 pm

Fantastic collection! I just bought a ton of eggs from Costco to let my boys try walking on them. 😉 Thanks for including our balloon experiment!

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August 4, 2015 at 8:41 pm

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January 15, 2017 at 8:17 pm

This is very interesting activity for my kids, I love to try this at home to create something new. Thanks for sharing your idea. 🙂

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June 18, 2017 at 3:37 am

Thanks, I have been looking for some arts and crafts for my granddaughter. She will love these. I am a little hesitant on the stepping on eggs thing though. Can’t tell you how many times I have gotten egg shells stuck in the palm of my hands.

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August 4, 2017 at 7:54 pm

What great ideas! My 4yo starts preschool soon and I’ll need more activities to keep him busy. Thanks for sharing!

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Kids Art & Craft

Kids Art & Craft

10 simple science experiments for 3-5 year olds.

10 Simple Science Experiments for 3-5 Year Olds

Kids Activities


Looking for age appropriate science activities for preschoolers? Here are a bunch of fun science ideas suitable for 3-5 year olds.

Test your kids hypothesis on what would happen if they stepped on raw eggs .  They will love this one!  From Housing A Forest.

Explore how plants “drink” with this experiment showing water moving through a leaf .  From Buggy and Buddy.

You can blow up a balloon with a combination of soda and candy.  So cool!  From Learn Play Imagine.

Oil and water don’t mix , but what happens when you add this special ingredient?  From Play Trains.

Explaining the concept of air pressure to preschoolers can be tricky but this easy experiment shows it perfectly!  From Kids Activities Blog.

How do the ice trucks melt snow after a storm?  This is a great demonstration.  From The Artul Parent.

This exploding baggie experiment is a twist on the classic baking soda and vinegar reaction and is super simple.  From Coffee Cups and Crayons.

Explain to your kids how sound waves work with this classic experiment.  From We Made That.

Exploding milk is one of the most fun and simple kid science experiments and you only need three kitchen ingredients.  From Laughing Kids Learn.

Did you know you can make ice grow ?  Here’s how!  From Teach Preschool.

Hope you like these

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science projects 3 year olds

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  • Science Fair Project Ideas for Kids, Middle & High School Students ⋅

Science Activities for 3- to 5-Year-Olds

Keep young children engaged in learning.

Science Projects on Teaching Evaporation & Condensation

Science is a hands-on based activity for 3- to 5-year-olds. Preschoolers aren't ready to sit down and memorize concepts. Encourage activities that promote a basic understanding of the world around them with activities that teach the basics in an enjoyable way. They will think they are playing when actually they are learning.

Help preschoolers create a replica of a seed's life cycle. Use eggshell halves, paper cups or small plastic pots to plant the seeds in. Help the children fill the cup with potting soil. Explain how the soil gives the seed the food it needs to grow. Help each child plant seeds in her cup. Choose seeds that grow easily and quickly such as lettuce or sunflowers. Place the cups in a sunny window and explain how the seeds need sunlight to grow strong and healthy. Water the plants as necessary. Let the children watch as the seeds grow. Point out that the leaves always reach for the sunshine and that is how the seed knows which way to grow. If planting an edible, such as lettuce harvest the leaves for a classroom snack once the plants are big enough.

Help your 3- to 5-year-olds understand the four different seasons. Make a seasonal tree to display at home or in the classroom. Create the tree trunk and branches from brown paper. Hang on a wall to display. For autumn, have the kids make paper leaves in fall colors. Take a nature walk through the neighborhood and collect fallen seeds, pods, pine cones and leaves. Tape them to the tree branches with the leaves the kids made. Explain that fall is when most trees and plants shed their leaves and seeds and get ready to sleep through winter. Cover how daytime gets shorter and it's time to start wearing sweaters and warmer clothing. In winter, remove all the leaves and seeds from the tree. Leave it bare and explain the tree is sleeping for the winter. Explain how plants, when it's cold outside, are saving their energy for spring. Explain that winter is when it is cold and that night lasts much longer than daytime. For spring, collect fallen flowers from trees and new leaves. Create flowers and leaves from construction paper. Tape them to the tree and tell the children that the plants wake up in the spring. Trees need new leaves to collect sunlight so they can be strong enough to make new seeds during the summer. The day is getting longer and the weather is warmer. In summer, place green full-size leaves on the tree. Explain that the tree is collecting plenty of strength from the sun and the dirt to make more seeds and fruit in the fall. Summer is a time for shorts and playing outside during the longer days.

Many preschoolers are enthralled with insects and bugs. Raise butterflies with the children to study the insect's life cycle. Purchase a caterpillar from an educational supply store. Keep in a tank with twigs, leaves and anything else the supplier advises for the particular type of caterpillar. Explain how all butterflies start out as caterpillars. When the caterpillar forms its chrysalis explain to the children the caterpillar is now ready to become a butterfly. When it is done it will break free of the chrysalis and be something beautiful and new. Once the butterflies emerge let the children set them free and explain the butterflies now need to find food so they can go out and make more caterpillars.

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  • Exploratorium: Preschool Science
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About the Author

Jenny Harrington has been a freelance writer since 2006. Her published articles have appeared in various print and online publications. Previously, she owned her own business, selling handmade items online, wholesale and at crafts fairs. Harrington's specialties include small business information, crafting, decorating and gardening.

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My Bored Toddler

Science Experiments for Toddlers and Preschoolers

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Science Experiments for Toddlers and Preschoolers

Planning science experiments for toddlers and preschoolers is so much easier than you might think. A lot of people consider science to be 'too hard' but I"m going to show you how much fun it is! These play based science activities are perfect for 1 - 5 year olds.

Science Experiments for Toddlers and Preschoolers

Science Experiments for Toddlers and Preschoolers 

When people think of learning activities for toddlers and preschoolers, the focus is normally on numeracy and literacy . We focus on teaching the alphabet and learning to count but forget about the importance of science.

In early education, science is all about exploring, investigating, asking questions, trial and error and generally having fun! Science takes play-based learning to a whole new level.

Science Activities for Toddlers

Let's go! Don't forget to share some pictures of your toddler engaged in these activities in our Facebook group or on Instagram (follow @myboredtoddler and use #MyBoredToddler so we can all see).

Science Experiments for Toddlers and Preschoolers

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If you enjoyed these science experiments and activities for toddlers then please share a few photos in our Facebook Group or on Instagram - use #MyBoredToddler

If you're looking for more toddler learning activities you might enjoy...

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50 Easy Preschool Science Experiments

Curious kids turn into junior scientists with these fun and easy preschool science experiments . This collection of  preschool science activities are totally do-able and use simple supplies for home or in the classroom.


science projects 3 year olds


So many of these science experiments below can be adapted to the level your kids are at right now. Also, many of these preschool science activities are perfect for kids of multiple ages to work together in small groups.


You bet! You will find science activities here that are inexpensive, as well as quick and easy to set up!

Many of these awesome kinder science experiments use common ingredients you may already have. Just check your kitchen cupboard for cool science supplies.

You will notice that I use the wording preschool science quite a bit, but these activities and experiments are absolutely perfect for kindergarten age kids as well as early elementary age kids . It all depends on the individual kid or group you are working with! You can also add more or less of the science information depending on the age level.

Make sure to check out…

  • STEM for Toddlers
  • STEM for Kindergarten
  • STEM for Elementary


There is much you can teach your 4 year old in science. Keep the activities playful and simple as you mix in a little of the “science” along the way.

These science experiments are also great for short attention spans. They are almost always hands-on, visually engaging, and filled with play opportunities!


Not only are preschool science experiments an awesome introduction to higher learning concepts, but they also spark curiosity. Help your children ask questions, problem solve and find answers .

Plus, introduce a little bit of patience with experiments that have quick results.

Repeating simple science experiments in different ways or with different themes is a great way to build a solid base of knowledge around the concept. 


Preschool science encourages making observations with the 5 senses including sight, sound, touch, smell, and sometimes even taste. When kids are fully able to immerse themselves in the activity, the greater the interest they will have in it!

Kids are naturally curious creatures and once you have piqued their curiosity, you have also turned on their observation skills, critical thinking skills, and experimenting skills.

These science activities are perfect for the senses because they offer room for play and exploration without adult-led directions. Kids will naturally start to pick up on the simple science concepts presented just through having a fun conversation about it all with you!

ALSO CHECK OUT: 5 Senses Activities For Preschoolers


Check out the links below to get yourself or your family or classroom ready for these easy preschool science experiments and activities. The key to success is in the preparation!

  • Preschool Science Center Ideas
  • Make a homemade science kit that’s inexpensive!
  • Set up a homemade science lab the kids will want to use!
  • Check out a summer science camp!

Click here or below to get your free science ideas pack

science projects 3 year olds


Here are some science activities you can do with your preschooler. Click on each of the links below for the full instructions.

Check out how water is absorbed by different materials with this simple Preschool Water Science activity .  Explore how much water a sponge can absorb . Or you can try the classic walking water science activity .

science projects 3 year olds


Make an Alka Seltzer Rocket , try Alka Seltzer Experiment or a homemade Lava Lamp to check out this neat chemical reaction.


Who doesn’t like a fizzing, foaming eruption? From an erupting lemon volcano to our simple baking soda balloon experiment. . Check out our list of baking soda science activities to get started!

science projects 3 year olds


Explore energy, measure distance, build different cars to explore speed and distance with simple balloon cars . You can use Duplo, LEGO, or build your own car.


Gas, energy, and power! Make Go power! Set up a simple balloon rocket . All you need is a string, a straw, and a balloon!


Definitely take this bursting bags science activity outside! Will it pop? This science activity will have you on the edge of your seat!


The science you can spread with a tasty homemade butter , after a good workout for the arms anyway!

Butter Battle Homemade Butter Science Activities and Dr. Seuss Science


Make an edible butterfly life cycle perfect for hands-on learning! Also, a great way to use up leftover candy!

Explore the simple fun of bubbles with these easy bubble experiments ! Can you make a bubble bounce? We have a recipe for the perfect bubble solution too.

Check out even more bubble fun with 2D bubble shapes or 3D bubble shapes and bubble snakes !


This bridge building activity is an easy engineering project for young kids. It starts with the planning and designing process and ends with the building process. Construct your own bridge from simple supplies.


Kids love building and building structures is a great activity that incorporates many skills. Plus it is a great frugal activity. Check out a variety of building activities .


Play Willy Wonka for a day and explore candy science with floating m&m’s, chocolate slime, dissolving candy experiments and more!

science projects 3 year olds


Watch the process of osmosis with a simple celery science experiment !


Have fun with this taste safe sensory play foam made with ingredients you probably already have in the kitchen! This edible shaving foam or aquafaba as it is commonly known is made from the water chick peas are cooked in.


Color mixing is a science. Learn colors through play with these preschool color activities .


Is it solid?  Or is it a liquid?  Learn about Non-Newtonian fluids and states of matter with this super simple cornstarch slime recipe .   Just 2 ingredients, and you have a borax free slime for preschoolers.


Growing crystals is simple! You can easily grow your own crystals at home or in the classroom with our simple recipe. Make a rainbow crystal , a snowflake , hearts , crystal eggshells , and even crystal seashells.


Can one liquid be lighter than the other? Find out with this easy liquid density experiment!

science projects 3 year olds


Be a paleontologist for a day and make your own homemade dinosaur fossils and then go on your own dinosaur dig . Check out all our fun preschool dinosaur activities .


Science in a bottle. Explore all kinds of simple science ideas right in a bottle! Check out a few of our easy science bottles or these discovery bottles for ideas. They are perfect for themes too like these Earth Day ones!

Test how strong an egg is with this easy eggshell strength experiment. Find out what happens to an egg in vinegar , and try our mess-free egg drop challenge for young kids.

Have you ever changed the color of a flower? Try this color-changing flower science experiment and learn about how a flower works! Or why not try growing your own flowers with our list of easy flowers to grow .

science projects 3 year olds

What goes up, must come down. Have young kids explore concepts in gravity around the house or classroom with simple objects you already have.


Make tasty science with edible rock candy geodes and learn a little bit about how they form!  Or make eggshell geodes !

science projects 3 year olds


Explore the senses and a little chemistry with our fizzy lemonade recipe!


Homemade ice cream is yummy edible science with only three ingredients! Don’t forget the winter gloves and sprinkles. This gets cold!


An ice melt activity is simple science you can set up in many different ways with many different themes. Ice melting is a wonderful introduction to a simple science concept for young kids! Check out our list of ice activities for preschool .

science projects 3 year olds

Try classic expanding ivory soap experiment ! One bar of ivory soap can be very exciting! Also see how we experimented with one bar of soap and turned it into either soap foam or soap slime !

Another must try science experiment using oil and water, a lava lamp experiment is always a favorite!

science projects 3 year olds


Set up a lettuce growing station . This is fascinating to watch and pretty quick to do. We watched the new lettuce grow taller each day!

Magic milk is definitely one of our most popular science experiments. Plus, it is just plain fun and mesmerizing!

science projects 3 year olds

What’s magnetic? What’s not magnetic. You can set up a magnet science discovery table for your kids to explore as well as a magnet activity !


Mirrors are fascinating and have wonderful play and learning possibilities plus it makes for great science!


Ah, the egg in vinegar experiment . You need a little patience for this one {takes 7 days}, but the end result is really cool!

science projects 3 year olds


Oobleck is 2 ingredient fun! A simple recipe using kitchen cupboard ingredients, but it is the perfect example of a non-newtonian fluid. Also makes for fun sensory play. Make classic oobleck or colored oobleck.

Take the penny boat challenge and find out how many pennies your tin foil boat will hold before sinking.  Learn about buoyancy and how boats float on water.

science projects 3 year olds

Make a simple pulley that really works, and test out lifting loads.

Learn about the science of rainbows as well as fun rainbow-themed science experiments. Check out our fun selection of simple-to-set-up  r ainbow science experiments . 

We use cars and balls all the time with our rain gutters! Even flat pieces of wood or stiff cardboard work! Check out toy car friction experiment ! Newton’s laws of motion really come alive with simple toy cars and homemade ramps.


Another tasty science activity as you explore how sugar crystals form !

science projects 3 year olds


Planting seeds and watching plants grow is the perfect spring preschool science activity. Our simple  seed jar science activity  is one of our most popular science activities for preschoolers. It is an excellent way to see how a seed grows!


Let’s explore the senses! Young kids are learning to use their senses every day. Set up a simple 5 Senses Science Table for exploring and learning how their senses work! Our candy taste test and senses activity is fun too.

science projects 3 year olds


Explore shadows in several ways! Make shadows with your body (fun outdoor play and learning idea) and animal shadow puppets to check out!

science projects 3 year olds

Slime is one of our favorite activities, and our simple slime recipes are perfect for learning a little bit about non-Newtonian fluids. Or just make slime for fun sensory play! Check out our fluffy slime !

science projects 3 year olds

Every kid should build a volcano! Build a sandbox volcano or a LEGO volcano !

Build a sandbox volcano for baking soda science and chemistry! Sand box science for kids outdoor STEM activities.

Young kids learn by exploring, observing, and figuring out the way things work with hands-on activities. This volume activity encourages all of the above and is simple to set up.


There are all kinds of fun science activities you can do with water. Use your STEM design skills to build your own water play wall , observe refraction of light in water , explore what dissolves in water or even try a simple solid liquid gas experiment .  Check out more easy water science experiments .


Explore wet weather with rain clouds and tornados or even make a water cycle in a bottle!

science projects 3 year olds


Create a tornado in a bottle and study the weather safely!

We made both an indoor and outdoor zip line this year. Explore science concepts through play.



Hi, this sounds like a neat activity for young toddlers to explore for texture. Could u please share the ingredients. My profession is in childcare. The children would like this activity I believe. Again, please share your slime recipe. Thank you!! LaTonia Jackson Armstrong

Hi! You simply need to click through the liquid starch slime link or get your recipe here box. However, I would suggest one of our taste safe slime recipes for toddlers as regular slime contains borax, sodium borate, or boric acid. These slimes should not be tasted!

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It’ fun for kids to experiment and science activities of any kind are a great way to encourage kids to explore. I will encourage my son about this hope so he will enjoy it. Thanks for the sharing such a interesting article.

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~ Projects to Try Now! ~

science projects 3 year olds

Team Cartwright

Preschool STEM Activities

Preschoolers were made for STEM. They want to know how everything around them works and they want hands-on activities. Don’t worry, this doesn’t mean you need to do big complicated experiments. We can still keep it simple.

As your toddler grows into a preschooler they are able to understand bigger concepts. They are also able to think deeper into what is going on in their world and tell you what interests them most.

This is an amazingly fun time to do STEM activities with your kids.

Here is what STEM activities and science experiments should look like with preschoolers, plus a big list of activities your little scientist will love.

Text: 25+ Preschool STEM and science activities. Pictures clockwise from top left: Cleaning pennies with ketchup experiment, dyed flowers science, superhero straw shooters, walking water rainbow STEM, diy lung model, cookie moon phase edible science experiment

What's In This Post?

What Ages Do We Mean?

Engineering, fun and hands on experiences, observations, asking questions, introducing the scientific method, easy preschool stem activities, 3 easy science activities to teach kids how colors work, how did you hear that simple sound science for kids, butterfly steam activities for preschoolers and toddlers, sunscreen painting: steam for kids, how to make a diy stethoscope for kids, number treasure hunt: sensory number sense activity, science by the pool: easy summer stem activities, soap and pepper experiment: how soap works, moon activities for preschoolers, colored flower experiment: spring science for kids, digestion experiment for kids- diy stomach model, popsicle stick catapult: a diy craft stick launcher, how to create a tasty and fun archaeological experience, how to make butter with kids: the science of churning butter, easy weather science experiments for preschoolers and toddlers, at home chemistry: cleaning pennies with ketchup, diy soda bottle terrarium for kids, how to make superhero straw shooters, exploding bag experiment for kids, leak proof bag experiment, simple, strange, and fun human tricks to mess with your kids, how to make mystery tinker bags and explore creative stem fun, monster sensory bags for toddlers: easy and fun learning activity, the science of slime and the best homemade recipes, warm-blooded vs cold blooded animal activity (with color changing slime), diy confetti poppers for kids, how to make an easy easter egg rocket, kids can code simple and fun lego coding activities, funicular trains: pulleys for kids, easy heart pump model: cardiovascular stem for kids, working lung model for kids, how to make a model spine: anatomy stem for kids, science experiments for preschool.

I know, the thought of sitting down and doing a real science experiment with a preschooler can seem, well, like a bad idea. Can they sit still? Is it safe? What are they even learning?

Don’t worry, this is going to be fun. STEM with preschoolers is hands-on, exciting, and it does not require a lot of work or a big mess.

First up, what ages are we talking about here? For these preschool ages, we mean 3-year-olds and 4-year-olds. They aren’t young toddlers anymore, but they aren’t kindergarten-ready either.

You will see that many of the activities here can also be found in the toddler STEM activities section. That’s by design. Kids don’t flip switches as they get older that suddenly make certain activities bad for them. They are still good, you can just dive deeper.

These activities are also designed to be flexible in terms of age range. This is perfect if you have more than one child. I give suggestions on ways to simplify projects for younger kids and ways to kick up the challenges for older children.

These particular activities work well for 3-4-year-olds, so they are highly recommended for your preschooler.


What does STEM mean again? And how is it different than STEAM?

STEM is an acronym for Science, Technology, Engineering, and Math. STEAM is just STEM with Art added. Yes, art is important! Not only for the creative growth of children, but art is also valuable for boosting problem-solving and communication skills. These are key for STEM.

Let’s breakdown what sort of activities would fit into these categories.

This is the more traditional fields when we think of science. Chemistry, biology, physics, etc.

For preschoolers, science is still really getting to know the basics of their world. They are still learning about things like sink or float and color mixing. But they are also learning about the weather around them, the different parts of plants, and what is in our solar system.

You are still building their science foundations, so we don’t need to make things complicated. Preschoolers easily tell us what they are interested in though, so this is a great time to dive deep into dinosaurs, stars, baking soda reactions, or whatever excites them.

This is a good time to explain concepts so children start to become familiar with the vocabulary, but we aren’t expecting mastery yet. Exposure, repetition, and fun are what count.

Depending on your comfort level, screen time can start to play a part in technology learning. It isn’t the whole thing though.

Technology for preschoolers builds early coding skills, which focuses on pattern recognition and understanding cause and effect. (For example, coding in ‘move forward one step’ results in a robot moving forward one step.)

You can practice all of these skills with screen-free activities, and you can start to bring in some games and activities that use screens. The choice of how to do this is yours, but keep those no-screen options to help build fine motor skills too!

Just like technology, you don’t have to think too high level for engineering at the preschool age.

A goal of engineering at this age is to work on problem-solving. How can they create something to solve a situation or even just what can they make to match what is in their imagination. This means that the adults step back and let the child explore.

Creative freedom and the freedom to make mistakes are learning tools here. Your child is going to try something and fail. That’s good, there is a ton of learning in that experience! You as the adult can help model positive reactions to failure and model resiliency.

Math isn’t everyone’s favorite, but it can be pretty fun at the preschool age. There is still a big focus on knowing numbers and building number sense. (Number sense is the understanding that numbers have unique values and those values can interact with each other. Learn more here: What Is Number Sense? )

This means we are still focusing on counting, number matching, and value matching. This is all easy to do just through normal play, or you can do more directed activities. As your child gets older you can move on to bigger numbers too!

There is also still a focus on comparing values and sizes. So talk about more vs less, bigger vs smaller, that sort of thing. This age is also a great time to start basic addition and subtraction concepts. We aren’t talking about anything huge, you can ease these ideas into play. For example, just start combing groups of toys and counting them out to show addition. Then talk through subtraction by taking them back away again.

text: 25+ STEM Activities for Preschool. Pictures: 12 pictures of various STEM and science experiments listed in the post

Goals for Preschool STEM Activities

How do we get the most out of our time doing these STEM activities with preschoolers? What should caregivers be focused on?

As with all activities you do with kids, the number one goal is fun. If they aren’t having fun (and if you aren’t having any fun), what’s the point? No one is learning and it is only going to end with negative associations towards STEM.

So the first thing to focus on is having fun.

The next most important thing is to let your kids get in there and have hands-on experiences. (Obviously, do this as safety allows.) Demonstrations can be a great tool, but try to let the kids take the lead in STEM activities for preschoolers.

Let them touch, smell, see, do, and just experience as much as you can.

Speaking of experiences, we are still heavily focused on observations during those experiences.

A big part of science and STEM activities is observing what is happening. This means helping your child pay attention to what is happening. Ask guiding questions such as What do you see? What do you smell? etc. If it is safe, have them smell and taste what they can too.

Observations are key to data gathering and understanding how our world works, and helping your child to focus on these things will be helpful for future learning and communication skills. (This is also why sensory play is so important. Learn more here:  Sensory Play Learning .)

This is an easy one for a lot of kids to do naturally, but encourage the asking of questions! What do they see? How do they think the activity works? Why do they think the results turned out that way?

The key here for the adult is to listen. Listen to what your child observes and thinks. No, they aren’t always going to be right. But it is important that they feel they can ask anything AND offer up their own explanations without ridicule.

There are no stupid questions. There are not stupid explanations. This is how we build the confidence to explore the unknown. (And yes, after you listen you can guide them to more accurate answers as needed.)

Text: 25+ Simple Preschool Science Activities That Aren't Hard To Do... Picture: 3 test tubes with blue lids in blue test tube holders from the dollar store. One tube has pink liquid, one purple, one blue for preschool STEM experiments.

The scientific method is an organized way of running science experiments. This is important even for preschool children. We don’t always follow it exactly when we do casual at-home science experiments, but it is a good idea to help kids learn to use a logical approach to their experimenting.

The scientific method is about so much more than just logical STEM projects, it teaches real-world life lessons and skills. You can read more here about how the scientific method sets kids up for powerful problem solving: Life Lessons from the Scientific Method .

Get ready to do activities with preschoolers more than once. Repetition is an important part of learning for kids.

It is very valuable to do the same experiment multiple times. The good news is that if you remember the first goal, fun, then even more learning will take place. Kids learn best through play .

The more we do these activities as adults, the easier they are to do. You’ll experience less stress about doing them and build your own scientific confidence.

Now that we know what our goals and expectations are, let’s dive into the activities. Which preschool STEM activity are you going to try first?

Preschool children love hands-onlearning! These easy and fun STEM activities for preschoolers are fast to put together and packed with learning. The target age for these science experiments is 3 years old to 4 years old, but that doesn't mean they are limited to these ages. Younger and older children will enjoy them too!

science projects 3 year olds

Colors are a natural way to get a child's interest and introduce science concepts. These are 3 super easy STEM activities that wow kids and teach fun science basics.

science projects 3 year olds

Embrace the noise littles make and turn it into a science lesson! Get super simple sound science activities kids love, including seeing sound waves and making a balloon amplifier.

science projects 3 year olds

Butterfly and caterpillar STEAM activities are so much fun! Get crafts that help learn caterpillar life cycles and anatomy, learn about symmetry, and burst out of a DIY cocoon!

science projects 3 year olds

Turn sunscreen into a magical art project! This fun STEAM experiment shows kids just how important sunscreen is and is a great creative activity.

science projects 3 year olds

Hearing our heartbeat is an amazing way to introduce anatomy science to kids. And you can make an easy DIY stethoscope with recycled materials. Here is how.

science projects 3 year olds

What's better than a treasure hunt? Combine sensory play and number sense with a fun number treasure hunt.

science projects 3 year olds

Get fun and easy science experiments you can do at the pool- no prep needed! Big pool or kiddie pool at home, this summer STEM is perfect anywhere.

science projects 3 year olds

Curious as to why soap is so important for hygiene? Try this simple experiment! A little pepper and water will clearly show how soap works to keep us healthy. Plus get the full scientific explanation!

science projects 3 year olds

Space inspires kids from a young age, and there are so many fun ways to learn more about it from here on Earth. Get fun and easy moon activities including tidal locking and a tasty moon phase activity. (Plus a free printable!)

science projects 3 year olds

Turn white flowers bright colors! It's easier than you think in this fun capillary action science experiment.

science projects 3 year olds

How do our stomachs turn food into fuel for our bodies? This simple experiment shows kids how our stomach muscles and juices work together to break down the food we eat.

science projects 3 year olds

Turn craft sticks into a fun catapult! This is an easy engineering challenge that teaches about potential and kinetic energy.

science projects 3 year olds

Let your child be an archaeologist with a fun and tasty dinosaur dig! This is a fun sensory STEM experience your kids will adore.

science projects 3 year olds

Learn about states of matter and how they change while making butter! This is a great science experiment for getting energy out, and it is very good at showing clear changes kids can understand. And you end up with butter you can actually eat!

science projects 3 year olds

5 Fun and easy weather experiments your kids will adore! Make a tornado in a bottle, see rain fall through sensory clouds, make a water cycle bag, and more. All using at-home items, all fascinating for preschoolers!

science projects 3 year olds

Can you clean a penny with ketchup? This simple kitchen chemistry challenge will thrill your child and teach them about chemical reactions.

science projects 3 year olds

Make your own personal garden and learn how plants grow anywhere! This terrarium from recycled materials is a great way to learn about nature and botany basics.

science projects 3 year olds

Every child should see themselves as a superhero, and this STEAM craft makes it happen. Turn your child into a real flying hero with straw shooters!

science projects 3 year olds

Turn a simple lunch bag into a fun popping experiment with a super simple chemical reaction! At home items are all you need to learn about limiting reagents and have fun.

science projects 3 year olds

Did you know you could put a pencil through a bag of water without the water coming out? Learn how with the leak proof bag experiment!

science projects 3 year olds

Dare your child to stand up against a wall on one foot. Can they do it? Get fun and easy (and totally safe) ways to fool your body while your child learns about proprioception!

science projects 3 year olds

Make a mystery engineering challenge with tinker bags! Work creative problem-solving skills in a super fun and easy way!

science projects 3 year olds

Sensory bags are an amazing way to get the benefits of sensory play with none of the mess. Learn how to turn the fastest sensory bag into an amazing number sense activity with these monster sensory bags!

science projects 3 year olds

Kids love slime. But what is slime exactly? Is it a solid? A liquid? Get the answers and the science behind how slime comes together. Plus get the easiest recipe to make consistently good slime, plus more recipes for the coolest slimes ever.

science projects 3 year olds

Let's learn about animals! Learn all about warm-blooded and cold-blooded animals with easy-to-understand explanations and fun facts. Plus learn how to use color-changing slime to help kids get a hands-on experience they will love! (And trust me, anyone can make this slime.)

science projects 3 year olds

Turn any day into a party with easy DIY confetti poppers! Your child will learn about cause and effect with this fun STEAM craft. (And there are tips to limit the mess!)

science projects 3 year olds

Want a real STEM challenge? Try making an Easter egg rocket! This is a real science experiment, you will need to experiment and tweak. But when it works, it's amazing.

science projects 3 year olds

Screen-free coding! Yes, preschoolers can start learning coding basics of pattern recognition and they can build their own codes using legos! And you'll get free printables to help out.

science projects 3 year olds

Time for a physics challenge, making a funicular train! Share the importance of simple machines with this easy pulley system that uses straws and strings.

science projects 3 year olds

Learn how the heart works by making a pumping heart model! This is a great project for kids and adults to do together and enjoy a homemade science fair project.

science projects 3 year olds

How do our lungs work? This homemade lung model from recycled materials lets kids see how our lungs and diaphragm work to make breathing possible.

science projects 3 year olds

Our spine is so important, but how does it keep us upright while still being flexible enough to bend and twist? Make this egg carton spine model and get an awesome visual representation of how the spine works.

Which preschool STEM activity are you going to try first?


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Happy Hooligans

Crafts and Activities for Toddlers and Preschoolers to Tweens

20 Science Activities for Toddlers and Preschoolers

Last updated on April 8, 2020

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20 Terrific science activities for toddlers and preschoolers. Great for home, daycare, the classroom or even for kids’ parties! Simple enough for toddlers and preschoolers, but fascinating enough for kids of all ages!

I’ve been sharing a lot of simple science experiments for kids on my facebook page lately, and the response from you guys has been terrific!

Wow!  Your children really love science, don’t they?

Well guess what!  I’ve rounded up a whole bunch of my favourite science-based activities for toddlers and preschoolers  and put them right here, all in one place for you!

Pin this post, or bookmark it , and you’ll have it handy any time you need a fun and easy science-based activity to do with your kids!

15+ Easy Science Activities for toddlers and preschoolers

For your convenience, this post contains affiliate links.

colour laboratory

Colour Mixing Experiment for Toddlers and Preschoolers:

Set up a colour laboratory with water, bubbles and an assortment of containers and fine motor instruments.  It’s a great way for kids to explore liquids, colour and colour mixing.


Expanding Ivory Soap Experiment:

Watch a bar of Ivory soap expand to 6 times its size in a minute and a half!

water displacement activity - happy hooligans

Water Displacement Experiment for Preschoolers:

A few rocks, a jar and a small toy animal are fun for teaching kids about water displacement .

salt glue and watercolour experiment

Art and Science with Salt, Glue and Watercolours:

Kids can practice spelling their name or simply create stunning pictures with this salt, glue and watercolour experiment.


Melting Ice Experiments for Preschoolers:

Watch and learn how salt helps to melt ice in the following FANTASTIC activities!  (Bonus:  They’ll all keep your kids busy for a good, long time too)

  • Melting Ice with Salt and Watercolours (shown)
  • Melting Elsa’s Frozen Hands
  • Ice Age Bin

Giant Homemade Bubbles Science Activity

Enormous Homemade Bubbles Recipe:

grapes to raisins experiment

Turn a Grape into a Raisin:

Watch a the slow process of a grape turning into a raisin .  You’ll require a little patience, but it really is cool!

3 ingredient puffy paint

Puffy Paint with 3 Kitchen Ingredients:

Puffy Painting:  Kids can watch their paintings go from flat to fluffy in a matter of seconds in the microwave.

Ocean in a bottle

Create an Ocean in a plastic Jar or Bottle:

Observe how oil and water behave together with an Ocean in a Bottle.   Your finished bottle will have a wonderfully mesmerizing and calming effect too.  Never a bad thing!

crayon resist cards

Wax Resist Art:

Through this beautiful, artistic process, kids can see how crayon wax and water resist each other.

Fizzing Colours - A baking Soda and Vinegar Science Experiment for toddlers and preschoolers - Happy Hooligans

Colourful Fizzing Baking Soda and Vinegar Science Experiment:

Kids LOVE the fizzing action that comes along with this colourful science activity. All you need is baking soda, vinegar and food colour or liquid watercolour.

How to make homemade butter in a jar

Turn Cream into Homemade Butter:

Kids of all ages will get a kick out of making their own butter with nothing more than jar full of cream.

paper towel art

Water Absorption and Colour Blending Experiments for Toddlers and Preschoolers:

Learn about water absorption and colour blending with these simple experiments:

  • Coloured Drip Painting
  • Paper Towel Dip
  • Paper Towel Art  (shown above)
  • Coffee Filter Art
  • Cotton Pad Art

colouring daisies with food colouring

And lastly,  there’s this classic science experiment.  Dyeing flowers with water and food colouring.  I haven’t a post to go along with this photo of mine, so I’ll send you over to  Twig and Toadstool to see how they recently coloured a bouquet of rainbow daisies .

More fun Science Activities for Toddlers and Preschoolers:

  • 3 Chemical Reaction Experiments for Preschoolers
  • Sink Or Float Experiment for Toddlers

Check out these cool and creative activities for kids!

  • 2-Ingredient Goop and Nature Goop
  • 25 Easy Art Techniques for Toddlers and Preschoolers
  • 15 Homemade Paint Recipes for Kids
  • 25 Water Play Activities

Get the 3-5 Playful Preschool e-Book!

25+ Preschool activities by 25 bloggers, 10 printables, PLUS 50 links to activities not featured in the book.

Click here to download your copy today

3-5 Playful Preschool 3-book

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science projects 3 year olds

Jackie is a mom, wife, home daycare provider, and the creative spirit behind Happy Hooligans. She specializes in kids’ crafts and activities, easy recipes, and parenting. She began blogging in 2011, and today, Happy Hooligans inspires more than 2 million parents, caregivers and Early Years Professionals all over the globe.

Reader Interactions

July 5, 2014 at 3:14 am

Love these – thank you! I’ve already tried some of them out from previous blog posts of yours!

July 22, 2014 at 8:19 am

Absolutely love the idea of gigantic bubbles for kids. My four year old has a bubble machine and will no doubt love trying this idea on the weekend. I will post a link on my site to this page as these are great.

Superhero Mama

July 27, 2014 at 12:10 am

We’ve done some of these already and I can’t wait to add some new ones from your ideas to my bag of tricks. Any new ones I try I’ll be sure to link them on my site !

September 1, 2014 at 4:21 pm

Thanks so much for this-can’t wait to try some of these out with my little girl 🙂


September 3, 2014 at 6:02 pm

You’re welcome, Lisa! Have fun with them!

October 19, 2014 at 4:02 pm

greta ideas, thanks for posting. Have a very recently turned two year old niece who is advanced for her age so these will attract her attention. It has everything i see language skill, math as well in these

October 28, 2014 at 8:23 am

wonderful blog ! i like so much,bravo

February 24, 2015 at 5:42 pm

Thank you for great ideas! The idea with the soap I want to do on this weekend.

July 24, 2015 at 12:13 pm

November 9, 2015 at 5:19 pm

Way cool! Have you grown a pet TickleMe Plant yet?

November 9, 2015 at 7:56 pm

Not yet, but they look very cool!

Michelle Lee

July 24, 2016 at 8:37 pm

Love, love, love all your ideas!! Thanks for sharing!

June 6, 2017 at 2:31 pm

Great ideas! I can’t wait to try some of these! I really want to do the water displacement and color lab experiments with my son! I know he’ll love it and keep him entertained! Thanks for the ideas!

June 13, 2017 at 11:41 am

I wonder if you already aware currently mindful latest upcoming newest cards4 the Mega Knight, cannon cart, Skeleton barrelSkeletal ststem and Flying machineTraveling I wager those 4 cards are really enjoyable and also amazing tto use. Please update uss with more Clash royale contents.

Marie Schemmel

November 28, 2019 at 7:56 pm

I am really excited to do so many fun and engaging science activities with my kids this year! I would love for you to share your favorite science activities for preschoolers in the comments!

Science Experiments

May 31, 2020 at 12:07 pm

I really loved all the science activities especially this one “TURN A GRAPE INTO A RAISIN”. Thanks for sharing.

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Sat / act prep online guides and tips, 37 cool science experiments for kids to do at home.

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General Education


Are you looking for cool science experiments for kids at home or for class? We've got you covered! We've compiled a list of 37 of the best science experiments for kids that cover areas of science ranging from outer space to dinosaurs to chemical reactions. By doing these easy science experiments, kids will make their own blubber and see how polar bears stay warm, make a rain cloud in a jar to observe how weather changes, create a potato battery that'll really power a lightbulb, and more.

Below are 37 of the best science projects for kids to try. For each one we include a description of the experiment, which area(s) of science it teaches kids about, how difficult it is (easy/medium/hard), how messy it is (low/medium/high), and the materials you need to do the project. Note that experiments labelled "hard" are definitely still doable; they just require more materials or time than most of these other science experiments for kids.

#1: Insect Hotels

  • Teaches Kids About: Zoology
  • Difficulty Level: Medium
  • Messiness Level: Medium

Insect hotels can be as simple (just a few sticks wrapped in a bundle) or as elaborate as you'd like, and they're a great way for kids to get creative making the hotel and then get rewarded by seeing who has moved into the home they built. After creating a hotel with hiding places for bugs, place it outside (near a garden is often a good spot), wait a few days, then check it to see who has occupied the "rooms." You can also use a bug ID book or app to try and identify the visitors.

  • Materials Needed
  • Shadow box or other box with multiple compartments
  • Hot glue gun with glue
  • Sticks, bark, small rocks, dried leaves, bits of yarn/wool, etc.

insect hotel

#2: DIY Lava Lamp

  • Teaches Kids About: Chemical reactions
  • Difficulty Level: Easy

In this quick and fun science experiment, kids will mix water, oil, food coloring, and antacid tablets to create their own (temporary) lava lamp . Oil and water don't mix easily, and the antacid tablets will cause the oil to form little globules that are dyed by the food coloring. Just add the ingredients together and you'll end up with a homemade lava lamp!

  • Vegetable oil
  • Food coloring
  • Antacid tablets

#3: Magnetic Slime

  • Teaches Kids About: Magnets
  • Messiness Level: High (The slime is black and will slightly dye your fingers when you play with it, but it washes off easily.)

A step up from silly putty and Play-Doh, magnetic slime is fun to play with but also teaches kids about magnets and how they attract and repel each other. Some of the ingredients you aren't likely to have around the house, but they can all be purchased online. After mixing the ingredients together, you can use the neodymium magnet (regular magnets won't be strong enough) to make the magnetic slime move without touching it!

  • Liquid starch
  • Adhesive glue
  • Iron oxide powder
  • Neodymium (rare earth) magnet

#4: Baking Soda Volcanoes

  • Teaches Kids About: Chemical reactions, earth science
  • Difficulty Level: Easy-medium
  • Messiness Level: High

Baking soda volcanoes are one of the classic science projects for kids, and they're also one of the most popular. It's hard to top the excitement of a volcano erupting inside your home. This experiment can also be as simple or in-depth as you like. For the eruption, all you need is baking soda and vinegar (dishwashing detergent adds some extra power to the eruption), but you can make the "volcano" as elaborate and lifelike as you wish.

  • Baking soda
  • Dishwashing detergent
  • Large mason jar or soda bottle
  • Playdough or aluminum foil to make the "volcano"
  • Additional items to place around the volcano (optional)
  • Food coloring (optional)

#5: Tornado in a Jar

  • Teaches Kids About: Weather
  • Messiness Level: Low

This is one of the quick and easy and science experiments for kids to teach them about weather. It only takes about five minutes and a few materials to set up, but once you have it ready you and your kids can create your own miniature tornado whose vortex you can see and the strength of which you can change depending on how quickly you swirl the jar.

  • Glitter (optional)

#6: Colored Celery Experiment

  • Teaches Kids About: Plants

This celery science experiment is another classic science experiment that parents and teachers like because it's easy to do and gives kids a great visual understanding of how transpiration works and how plants get water and nutrients. Just place celery stalks in cups of colored water, wait at least a day, and you'll see the celery leaves take on the color of the water. This happens because celery stalks (like other plants) contain small capillaries that they use to transport water and nutrients throughout the plant.

  • Celery stalks (can also use white flowers or pale-colored cabbage)

#7: Rain Cloud in a Jar

This experiment teaches kids about weather and lets them learn how clouds form by making their own rain cloud . This is definitely a science project that requires adult supervision since it uses boiling water as one of the ingredients, but once you pour the water into a glass jar, the experiment is fast and easy, and you'll be rewarded with a little cloud forming in the jar due to condensation.

  • Glass jar with a lid
  • Boiling water
  • Aerosol hairspray


#8: Edible Rock Candy

  • Teaches Kids About: Crystal formation

It takes about a week for the crystals of this rock candy experiment to form, but once they have you'll be able to eat the results! After creating a sugar solution, you'll fill jars with it and dangle strings in them that'll slowly become covered with the crystals. This experiment involves heating and pouring boiling water, so adult supervision is necessary, once that step is complete, even very young kids will be excited to watch crystals slowly form.

  • Large saucepan
  • Clothespins
  • String or small skewers
  • Candy flavoring (optional)

#9: Water Xylophone

  • Teaches Kids About: Sound waves

With just some basic materials you can create your own musical instrument to teach kids about sound waves. In this water xylophone experiment , you'll fill glass jars with varying levels of water. Once they're all lined up, kids can hit the sides with wooden sticks and see how the itch differs depending on how much water is in the jar (more water=lower pitch, less water=higher pitch). This is because sound waves travel differently depending on how full the jars are with water.

  • Wooden sticks/skewers

#10: Blood Model in a Jar

  • Teaches Kids About: Human biology

This blood model experiment is a great way to get kids to visual what their blood looks like and how complicated it really is. Each ingredient represents a different component of blood (plasma, platelets, red blood cells, etc.), so you just add a certain amount of each to the jar, swirl it around a bit, and you have a model of what your blood looks like.

  • Empty jar or bottle
  • Red cinnamon candies
  • Marshmallows or dry white lima beans
  • White sprinkles

#11: Potato Battery

  • Teaches Kids About: Electricity
  • Difficulty Level: Hard

Did you know that a simple potato can produce enough energy to keep a light bulb lit for over a month? You can create a simple potato battery to show kids. There are kits that provide all the necessary materials and how to set it up, but if you don't purchase one of these it can be a bit trickier to gather everything you need and assemble it correctly. Once it's set though, you'll have your own farm grown battery!

  • Fresh potato
  • Galvanized nail
  • Copper coin


#12: Homemade Pulley

  • Teaches Kids About: Simple machines

This science activity requires some materials you may not already have, but once you've gotten them, the homemade pulley takes only a few minutes to set up, and you can leave the pulley up for your kids to play with all year round. This pulley is best set up outside, but can also be done indoors.

  • Clothesline
  • 2 clothesline pulleys

#13: Light Refraction

  • Teaches Kids About: Light

This light refraction experiment takes only a few minutes to set up and uses basic materials, but it's a great way to show kids how light travels. You'll draw two arrows on a sticky note, stick it to the wall, then fill a clear water bottle with water. As you move the water bottle in front of the arrows, the arrows will appear to change the direction they're pointing. This is because of the refraction that occurs when light passes through materials like water and plastic.

  • Sticky note
  • Transparent water bottle

#14: Nature Journaling

  • Teaches Kids About: Ecology, scientific observation

A nature journal is a great way to encourage kids to be creative and really pay attention to what's going on around them. All you need is a blank journal (you can buy one or make your own) along with something to write with. Then just go outside and encourage your children to write or draw what they notice. This could include descriptions of animals they see, tracings of leaves, a drawing of a beautiful flower, etc. Encourage your kids to ask questions about what they observe (Why do birds need to build nests? Why is this flower so brightly colored?) and explain to them that scientists collect research by doing exactly what they're doing now.

  • Blank journal or notebook
  • Pens/pencils/crayons/markers
  • Tape or glue for adding items to the journal

#15: DIY Solar Oven

  • Teaches Kids About: Solar energy

This homemade solar oven definitely requires some adult help to set up, but after it's ready you'll have your own mini oven that uses energy from the sun to make s'mores or melt cheese on pizza. While the food is cooking, you can explain to kids how the oven uses the sun's rays to heat the food.

  • Aluminum foil
  • Knife or box cutter
  • Permanent marker
  • Plastic cling wrap
  • Black construction paper


#16: Animal Blubber Simulation

  • Teaches Kids About: Ecology, zoology

If your kids are curious about how animals like polar bears and seals stay warm in polar climates, you can go beyond just explaining it to them; you can actually have them make some of their own blubber and test it out. After you've filled up a large bowl with ice water and let it sit for a few minutes to get really cold, have your kids dip a bare hand in and see how many seconds they can last before their hand gets too cold. Next, coat one of their fingers in shortening and repeat the experiment. Your child will notice that, with the shortening acting like a protective layer of blubber, they don't feel the cold water nearly as much.

  • Bowl of ice water

#17: Static Electricity Butterfly

This experiment is a great way for young kids to learn about static electricity, and it's more fun and visual than just having them rub balloons against their heads. First you'll create a butterfly, using thick paper (such as cardstock) for the body and tissue paper for the wings. Then, blow up the balloon, have the kids rub it against their head for a few seconds, then move the balloon to just above the butterfly's wings. The wings will move towards the balloon due to static electricity, and it'll look like the butterfly is flying.

  • Tissue paper
  • Thick paper
  • Glue stick/glue

#18: Edible Double Helix

  • Teaches Kids About: Genetics

If your kids are learning about genetics, you can do this edible double helix craft to show them how DNA is formed, what its different parts are, and what it looks like. The licorice will form the sides or backbone of the DNA and each color of marshmallow will represent one of the four chemical bases. Kids will be able to see that only certain chemical bases pair with each other.

  • 2 pieces of licorice
  • 12 toothpicks
  • Small marshmallows in 4 colors (9 of each color)
  • 5 paperclips

#19: Leak-Proof Bag

  • Teaches Kids About: Molecules, plastics

This is an easy experiment that'll appeal to kids of a variety of ages. Just take a zip-lock bag, fill it about ⅔ of the way with water, and close the top. Next, poke a few sharp objects (like bamboo skewers or sharp pencils) through one end and out the other. At this point you may want to dangle the bag above your child's head, but no need to worry about spills because the bag won't leak? Why not? It's because the plastic used to make zip-lock bags is made of polymers, or long chains of molecules that'll quickly join back together when they're forced apart.

  • Zip-lock bags
  • Objects with sharp ends (pencils, bamboo skewers, etc.)


#20: How Do Leaves Breathe?

  • Teaches Kids About: Plant science

It takes a few hours to see the results of this leaf experiment , but it couldn't be easier to set up, and kids will love to see a leaf actually "breathing." Just get a large-ish leaf, place it in a bowl (glass works best so you can see everything) filled with water, place a small rock on the leaf to weigh it down, and leave it somewhere sunny. Come back in a few hours and you'll see little bubbles in the water created when the leaf releases the oxygen it created during photosynthesis.

  • Large bowl (preferably glass)
  • Magnifying glass (optional)

#21: Popsicle Stick Catapults

Kids will love shooting pom poms out of these homemade popsicle stick catapults . After assembling the catapults out of popsicle sticks, rubber bands, and plastic spoons, they're ready to launch pom poms or other lightweight objects. To teach kids about simple machines, you can ask them about how they think the catapults work, what they should do to make the pom poms go a farther/shorter distance, and how the catapult could be made more powerful.

  • Popsicle sticks
  • Rubber bands
  • Plastic spoons
  • Paint (optional)

#22: Elephant Toothpaste

You won't want to do this experiment near anything that's difficult to clean (outside may be best), but kids will love seeing this " elephant toothpaste " crazily overflowing the bottle and oozing everywhere. Pour the hydrogen peroxide, food coloring, and dishwashing soap into the bottle, and in the cup mix the yeast packet with some warm water for about 30 seconds. Then, add the yeast mixture to the bottle, stand back, and watch the solution become a massive foamy mixture that pours out of the bottle! The "toothpaste" is formed when the yeast removed the oxygen bubbles from the hydrogen peroxide which created foam. This is an exothermic reaction, and it creates heat as well as foam (you can have kids notice that the bottle became warm as the reaction occurred).

  • Clean 16-oz soda bottle
  • 6% solution of hydrogen peroxide
  • 1 packet of dry yeast
  • Dishwashing soap

#23: How Do Penguins Stay Dry?

Penguins, and many other birds, have special oil-producing glands that coat their feathers with a protective layer that causes water to slide right off them, keeping them warm and dry. You can demonstrate this to kids with this penguin craft by having them color a picture of a penguin with crayons, then spraying the picture with water. The wax from the crayons will have created a protective layer like the oil actual birds coat themselves with, and the paper won't absorb the water.

  • Penguin image (included in link)
  • Spray bottle
  • Blue food coloring (optional)


#24: Rock Weathering Experiment

  • Teaches Kids About: Geology

This mechanical weathering experiment teaches kids why and how rocks break down or erode. Take two pieces of clay, form them into balls, and wrap them in plastic wrap. Then, leave one out while placing the other in the freezer overnight. The next day, unwrap and compare them. You can repeat freezing the one piece of clay every night for several days to see how much more cracked and weathered it gets than the piece of clay that wasn't frozen. It may even begin to crumble. This weathering also happens to rocks when they are subjected to extreme temperatures, and it's one of the causes of erosion.

  • Plastic wrap

#25: Saltwater Density

  • Teaches Kids About: Water density

For this saltwater density experiment , you'll fill four clear glasses with water, then add salt to one glass, sugar to one glass, and baking soda to one glass, leaving one glass with just water. Then, float small plastic pieces or grapes in each of the glasses and observe whether they float or not. Saltwater is denser than freshwater, which means some objects may float in saltwater that would sink in freshwater. You can use this experiment to teach kids about the ocean and other bodies of saltwater, such as the Dead Sea, which is so salty people can easily float on top of it.

  • Four clear glasses
  • Lightweight plastic objects or small grapes

#26: Starburst Rock Cycle

With just a package of Starbursts and a few other materials, you can create models of each of the three rock types: igneous, sedimentary, and metamorphic. Sedimentary "rocks" will be created by pressing thin layers of Starbursts together, metamorphic by heating and pressing Starbursts, and igneous by applying high levels of heat to the Starbursts. Kids will learn how different types of rocks are forms and how the three rock types look different from each other.

  • Toaster oven

#27: Inertia Wagon Experiment

  • Teaches Kids About: Inertia

This simple experiment teaches kids about inertia (as well as the importance of seatbelts!). Take a small wagon, fill it with a tall stack of books, then have one of your children pull it around then stop abruptly. They won't be able to suddenly stop the wagon without the stack of books falling. You can have the kids predict which direction they think the books will fall and explain that this happens because of inertia, or Newton's first law.

  • Stack of books

#28: Dinosaur Tracks

  • Teaches Kids About: Paleontology

How are some dinosaur tracks still visible millions of years later? By mixing together several ingredients, you'll get a claylike mixture you can press your hands/feet or dinosaur models into to make dinosaur track imprints . The mixture will harden and the imprints will remain, showing kids how dinosaur (and early human) tracks can stay in rock for such a long period of time.

  • Used coffee grounds
  • Wooden spoon
  • Rolling pin

#29: Sidewalk Constellations

  • Teaches Kids About: Astronomy

If you do this sidewalk constellation craft , you'll be able to see the Big Dipper and Orion's Belt in the daylight. On the sidewalk, have kids draw the lines of constellations (using constellation diagrams for guidance) and place stones where the stars are. You can then look at astronomy charts to see where the constellations they drew will be in the sky.

  • Sidewalk chalk
  • Small stones
  • Diagrams of constellations

#30: Lung Model

By building a lung model , you can teach kids about respiration and how their lungs work. After cutting off the bottom of a plastic bottle, you'll stretch a balloon around the opened end and insert another balloon through the mouth of the bottle. You'll then push a straw through the neck of the bottle and secure it with a rubber band and play dough. By blowing into the straw, the balloons will inflate then deflate, similar to how our lungs work.

  • Plastic bottle
  • Rubber band


#31: Homemade Dinosaur Bones

By mixing just flour, salt, and water, you'll create a basic salt dough that'll harden when baked. You can use this dough to make homemade dinosaur bones and teach kids about paleontology. You can use books or diagrams to learn how different dinosaur bones were shaped, and you can even bury the bones in a sandpit or something similar and then excavate them the way real paleontologists do.

  • Images of dinosaur bones

#32: Clay and Toothpick Molecules

There are many variations on homemade molecule science crafts . This one uses clay and toothpicks, although gumdrops or even small pieces of fruit like grapes can be used in place of clay. Roll the clay into balls and use molecule diagrams to attach the clay to toothpicks in the shape of the molecules. Kids can make numerous types of molecules and learn how atoms bond together to form molecules.

  • Clay or gumdrops (in four colors)
  • Diagrams of molecules

#33: Articulated Hand Model

By creating an articulated hand model , you can teach kids about bones, joints, and how our hands are able to move in many ways and accomplish so many different tasks. After creating a hand out of thin foam, kids will cut straws to represent the different bones in the hand and glue them to the fingers of the hand models. You'll then thread yarn (which represents tendons) through the straws, stabilize the model with a chopstick or other small stick, and end up with a hand model that moves and bends the way actual human hands do.

  • Straws (paper work best)
  • Twine or yarn

#34: Solar Energy Experiment

  • Teaches Kids About: Solar energy, light rays

This solar energy science experiment will teach kids about solar energy and how different colors absorb different amounts of energy. In a sunny spot outside, place six colored pieces of paper next to each other, and place an ice cube in the middle of each paper. Then, observe how quickly each of the ice cubes melt. The ice cube on the black piece of paper will melt fastest since black absorbs the most light (all the light ray colors), while the ice cube on the white paper will melt slowest since white absorbs the least light (it instead reflects light). You can then explain why certain colors look the way they do. (Colors besides black and white absorb all light except for the one ray color they reflect; this is the color they appear to us.)

  • 6 squares of differently colored paper/cardstock (must include black paper and white paper)

#35: How to Make Lightning

  • Teaches Kids About: Electricity, weather

You don't need a storm to see lightning; you can actually create your own lightning at home . For younger kids this experiment requires adult help and supervision. You'll stick a thumbtack through the bottom of an aluminum tray, then stick the pencil eraser to the pushpin. You'll then rub the piece of wool over the aluminum tray, and then set the tray on the Styrofoam, where it'll create a small spark/tiny bolt of lightning!

  • Pencil with eraser
  • Aluminum tray or pie tin
  • Styrofoam tray

#36: Tie-Dyed Milk

  • Teaches Kids About: Surface tension

For this magic milk experiment , partly fill a shallow dish with milk, then add a one drop of each food coloring color to different parts of the milk. The food coloring will mostly stay where you placed it. Next, carefully add one drop of dish soap to the middle of the milk. It'll cause the food coloring to stream through the milk and away from the dish soap. This is because the dish soap breaks up the surface tension of the milk by dissolving the milk's fat molecules.

  • Shallow dish
  • Milk (high-fat works best)


#37: How Do Stalactites Form?

Have you ever gone into a cave and seen huge stalactites hanging from the top of the cave? Stalactites are formed by dripping water. The water is filled with particles which slowly accumulate and harden over the years, forming stalactites. You can recreate that process with this stalactite experiment . By mixing a baking soda solution, dipping a piece of wool yarn in the jar and running it to another jar, you'll be able to observe baking soda particles forming and hardening along the yarn, similar to how stalactites grow.

  • Safety pins
  • 2 glass jars

Summary: Cool Science Experiments for Kids

Any one of these simple science experiments for kids can get children learning and excited about science. You can choose a science experiment based on your child's specific interest or what they're currently learning about, or you can do an experiment on an entirely new topic to expand their learning and teach them about a new area of science. From easy science experiments for kids to the more challenging ones, these will all help kids have fun and learn more about science.

What's Next?

Are you also interested in pipe cleaner crafts for kids? We have a guide to some of the best pipe cleaner crafts to try!

Looking for multiple different slime recipes? We tell you how to make slimes without borax and without glue as well as how to craft the ultimate super slime .

Want to learn more about clouds? Learn how to identify every cloud in the sky with our guide to the 10 types of clouds .

Want to know the fastest and easiest ways to convert between Fahrenheit and Celsius? We've got you covered! Check out our guide to the best ways to convert Celsius to Fahrenheit (or vice versa) .

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Christine graduated from Michigan State University with degrees in Environmental Biology and Geography and received her Master's from Duke University. In high school she scored in the 99th percentile on the SAT and was named a National Merit Finalist. She has taught English and biology in several countries.

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45 Easy Science Experiments for Kids

Hello, STEM! These simple DIY activities can be done at home or in school.

Headshot of Marisa LaScala

Imagine blowing the biggest bubbles imaginable — or even making bubbles within bubbles. Or sending vessels — rockets, tea bags, airplanes — soaring through the sky for impossible distances. Now imagine making things explode, or change colors, or reveal hidden messages with just a few simple mixtures.

First off, it's good to start them off with the scientific method. Give them a journal to record their observations, questions, hypotheses, experiments, results and conclusions. As always, safety counts: wear goggles and coats or aprons if need be (sometimes kids get a kick out of how scientific the protective gear makes them look), and always make sure that the kids are supervised when doing them. (Warning: Some of these are messy!)

These experiments are mostly designed for preschoolers through elementary schoolers — with a couple that are either demonstrations or better for older kids — but if you have a younger one, you can check out these 1-year-old learning activities , toddler learning activities and preschool/kindergarten learning activities , some of which also cover STEM subjects.

Floating Fish

dryerase fish float in a shallow dish of water as part of an athome science experiment for kids

Here's another one that deals with solubility and density.

  • Draw the outline of a fish on the bottom of a glass plate or tray in dry-erase marker. Retrace your drawing to make sure all the lines are connected. Let dry for a minute or two.
  • Fill the measuring cup with tap water. Place the pour spout just inside the corner of the dish and add water very slowly until it just covers the bottom. Be careful not to pour water directly onto your drawing or make splashes near it. The water will move toward your drawing, eventually surrounding it. Observe what happens. If the water splashes or it doesn’t work on your first try, empty the dish, erase the drawing with a paper towel, dry off the dish, and try again.
  • Tilt the dish slightly from side to side. What happens? Jot it down.

The ink in dry erase markers is engineered to be slippery. It’s made with a chemical that causes it to easily release from surfaces. (Permanent markers are made with a chemical that makes the ink stick to surfaces, so be sure not to use these in your experiment!)

The easy-release ink lets go from a surface, but why does it float? There are two reasons. First, dry erase ink isn’t soluble, which means it won’t dissolve in water. Second, dry erase ink is less dense than the water, so it becomes buoyant, meaning it can float. When you tilt the dish, the fish moves around on the water’s surface.

From Good Housekeeping Amazing Science: 83 Hands-on S.T.E.A.M Experiments for Curious Kids! See more in the book »

Brush, Brush!

eggs, toothbrushes and different kinds of liquids form the materials for this at home science experiment for kids

This one will really get them into brushing their teeth once they scientifically prove all the good things that toothpaste can do.

  • Write on sticky notes: Soda 1, Soda 2, Juice 1, and Juice 2. Place them in a row on a counter.
  • Fill two glasses halfway with brown soda and place behind the Soda 1 and Soda 2 sticky notes. Fill two glasses halfway with lemon juice and place behind the Juice 1 and Juice 2 sticky notes.
  • Carefully place one egg in the bowl. Squeeze a big dollop — about one tablespoon — of toothpaste on top of the egg and gently rub the toothpaste all around with your hands until the egg is completely covered in a thick layer of toothpaste. Repeat with a second egg.
  • Gently submerge the toothpaste-covered eggs into the liquids: one egg in the glass labeled Soda 1 and the other egg in the glass labeled Juice 1. Wash and dry your hands.
  • Gently submerge the remaining eggs, without toothpaste on them, in the remaining glasses: one in the glass labeled Soda 2 and the other in the glass of juice labeled Juice 2. Wash and dry your hands. Leave the eggs in the glasses for 12 hours.
  • After 12 hours, remove the eggs from the glasses of soda one at a time. Rinse them in cool water and pat them dry with the towel. Place each egg by the sticky note of the glass it was in. Are the eggs the same or different colors?
  • Remove the eggs from the glasses of juice one at a time. Rinse them under the faucet and pat them dry. Place each egg by the sticky note of the glass it was in. Feel the eggs gently. Does one feel stronger or weaker than the other?
  • Write down your observations in your science notebook.

The eggshells in this experiment represent the enamel (outer coating) on your teeth. Toothpaste cleans your teeth and prevents stains: it removes food and drink particles that are stuck on your teeth. Teeth can be stained easily by dark-colored liquids like cola, coffee or tea. The egg without toothpaste will be brown and discolored. The egg covered in toothpaste was protected from turning brown.

Toothpaste also protects your pearly whites from decay (breaking down). The egg without toothpaste left in the lemon juice was worn down and soft to the touch, while the egg that was protected with toothpaste is stronger. The lemon juice is acidic, and those acids broke down the shell just as acidic drinks can wear away your tooth enamel. When a tooth is worn down, a cavity can form more easily. But the fluoride in toothpaste mixes with your saliva to create a protective coating around your tooth enamel. It helps keep your teeth strong and cavity-free.

Grow an Avocado Tree

an avocado tree grows from a pit as part of this at home science experiment for kids

For an easy lesson in Earth Science, your family can grow an avocado tree from a pit. You can buy an AvoSeedo kit , or just peel the seed and suspend it over water with toothpicks.

Get the tutorial »

Milk Bottle Xylophone

milk bottle xylophone consisting of seven bottles of varying amounts of coloured water and a metal spoon, in a row, as part of an at home science experiment

No for an experiment in sound!

  • Arrange six glass jars or bottles, all the same size with no lids, in a line. What will each jar sound like when you tap it with a spoon? Make a prediction, then tap each jar. Record your observations.
  • Next, put water in each of the jars. Pour 1⁄4 cup (60 ml) of water into the first jar. Add 1⁄2 cup (120 ml) of water to the second jar. Continue in 1⁄4-cup increments, adding 3⁄4 cup (180 ml) of water to the third jar, 1 cup (240 ml) of water to the fourth jar, 11⁄4 cups (300 ml) of water to the fifth jar, and 11⁄2 cups (360 ml) to the sixth jar. Add a couple of drops of food coloring to each jar.
  • What will each jar sound like? Will they sound the same or different than when the container was empty? Will they sound the same or different from one another? Record your predictions.
  • Tap each jar with a metal spoon. Write down your observations about each jar’s pitch (how high or low a sound is) in your notebook.

Sound waves are created by vibrations, which are back-and-forth movements that are repeated again and again. Pitch depends on the frequency of the waves — how many are created each second. A high pitch is created by high-frequency sound waves, and can sound squeaky. A low pitch is created by low-frequency sound waves, and sounds deep and booming.

When you tapped the jar, it vibrated. The vibrations traveled from the jar to the water to the air and eventually to your ears. The jars with more water had a low pitch. The sound waves vibrated more slowly because they had more water to travel through. The jars with less water had higher pitches. The sound waves vibrated faster because they had less water to travel through. A jar with no water in it makes the highest pitch because it has the least substance to travel through.

"Elephant Toothpaste"

foamy striped elephant toothpaste overflows from a bottle in this science experiment for kids

Okay, elephants don't really brush with this stuff, which is made from a chemical reaction between hydrogen peroxide, yeast, dish soap and a few other simple ingredients. But this experiment has a big "wow" factor since, when the substances are mixed, the "toothpaste" foams out of the bottle. You can use it to teach kids about catalysts and exothermic reactions.

Get the tutorial at Babble Dabble Do »

DIY Compass

a diy compass, made as a science experiment for kids, floats in a bowl next to a digital compass pointing in the same direction

Explore the way magnetism works, and how it affects everyday objects, by magnetizing a needle and making a DIY compass. You can even spin the compass in the water, and it'll end up pointing the right way again.

Get the tutorial at STEAM Powered Family »

Craft Stick Chain Reaction

colored craft sticks with pom poms on top are lined up on grass as part of a science experiments for kids about chain reactions and potential and kinetic energy

Kids can learn about the differences between potential and kinetic energy with this chain reaction. It makes a big impact: Once the tension is released, the pom poms go flying through the air!

Get the the tutorial at Science Sparks »

Color-Changing Invisible Ink

different messages and pictures are written in different substances to test out different color changing invisible inks as part of a science experiment for kids

Kids will feel like super-spies when they use this heatless method to reveal pictures or colors written with "invisible ink." You can try different acid/base combinations to see which one makes the most dramatic result.

Get the tutorial at Research Parent »

Paper Bridge

pennies sit on a construction paper bridge that spans two red solo cups in this science experiment for kids

Get the engineering back into STEM with this activity, which challenges kids to create a paper bridge that's strong enough to hold as many pennies as possible. How can they manipulate the paper to make it sturdier? (Hint: Fold it!)

See the paper bridge tutorial at »

an ice cube is suspended on a string above a bowl of ice in this science experiment for kids

Challenge your little scientist to lift up an ice cube with just a piece of string. It's possible ... with a little salt to help. Salt melts the ice and lowers the freezing point of the ice cube, which absorbs the heat from the water around it, making the water cold enough to re-freeze around the string.

Get the tutorial at Playdough to Plato »

Marshmallow Catapult

a marshmallow catapult made from craft sticks and a wooden spoon is a great science experiment for kids

Another lesson in potential and kinetic energy, kids will love sending mini marshmallows flying in the name of science. Change some of the variables and see how that affects the marshmallow's trajectory.

Get the tutorial at Hello, Wonderful »

Leaf Breathing

bubbles form on a leaf under water as part of a leaf breathing science experiment for kids

It's hard for kids to picture how plants and trees "breathe" through their leaves — until they see the bubbles appear on a leaf that's submerged in water. You can also teach them about photosynthesis by putting different leaves in different spots with varying levels of sunlight.

Get the tutorial at KC EDventures »

Hoop-and-Straw Airplane

a hoop and straw airplane, created as part of a science experiment for kids, sits on a black background

We all remember how to fold those classic, triangular paper airplanes, but these hoop-and-straw airplanes fly way better (and straighter). Experiment by changing the length of the straw and the size of the hoops and see how it affects the flight.

Get the tutorial at Mombrite »

Film Canister Rocket

a diy rocket takes off from a table, where another rocket waits, in this science experiment for kids

Blast off! You don't need jet fuel to make these rockets go, just Alka-Seltzer tablets and baking soda, but they'll be amazed when they achieve lift-off! (Note: If you can't find old film canisters, tubes of Airborne work, too.)

Get the tutorial at Raising Lifelong Learners »

Coin Inertia

a stack of coins sits on a piece of cardboard on top of a glass of water as part of a science experiment for kids about inertia

Stack up about five or so coins on a piece of cardboard and place it over a glass of water. Then, flick the cardboard out from on top of the glass. Do the coins drop into the water, or ride with the cardboard? Due to inertia, they drop into the water — a very visual (and fun!) demonstration of Newton's First Law of Motion.

Get the tutorial at Engineering Emily »

Apple Oxidation

science experiments for kids   apple oxidation

What works best for keeping an apple from turning brown? Test to find out! Slice up an apple, and let each slice soak in a different liquid. Then take them out, lay them on a tray, and check the brownness after three minutes, six minutes and so on. Not only does this test the properties of different liquids, it also helps students practice the scientific method if they create hypotheses about which liquids would be most effective.

Get the tutorial at Jennifer Findley »

RELATED: 50 Fun Activities for Kids Will Keep Them Entertained for Hours

Coffee Ground Fossils

a salt dough circle "fossil" with dinosaur footprints, made as part of an athome science experiment for kids

By making a salt dough with coffee grounds and pressing various shapes into it (toy dinosaur feet, seashells), kids can get a better understanding of how fossils are made. If you poke a hole in the top before it dries, the kids can hang their "fossils" up in their rooms.

Get the tutorial at Crafts by Amanda »

Chromatography Flowers

a coffee filter flower with an led in the center is decorated with swirls of color as part of this at home science experiment for kids

Chromatography is the process of separating a solution into different parts — like the pigments in the ink used in markers. If you draw stripes around a coffee filter, then fold it up and dip the tip in water, the water will travel up the filter and separate the marker ink into its different pigments (in cool patterns that you can display as a craft project). This family made the end-result even brighter by adding an LED circuit to the center.

Get the tutorial at Steam Powered Family »

Water Walking

five cups with different colored liquid in them are connected by paper towel bridges as part of this at home science experiment for kids

You'll need six containers of water for this one: three with clear water, one with red food coloring, one with blue coloring, and one with yellow coloring. Arrange them in a circle, alternating colored and clear containers, and make bridges between the containers with folded paper towels. Your kids will be amazed to see the colored water "walk" over the bridges and into the clear containers, mixing colors, and giving them a first-hand look at the magic of capillarity.

Get the tutorial at Fun Learning for Kids »

Sunscreen Test

colorful construction paper painted with different sunscreens, as part of an athome science experiment for kids

This experiment puts the A (art) in STEAM: Paint different designs on construction paper with different sunscreens, leave the papers out in the sun and compare the results. Then, hang your "conclusions" on your fridge.

Get the tutorial at Tonya Staab »

Headshot of Marisa LaScala

Marisa (she/her) has covered all things parenting, from the postpartum period through the empty nest, for Good Housekeeping since 2018; she previously wrote about parents and families at Parents and Working Mother . She lives with her husband and daughter in Brooklyn, where she can be found dominating the audio round at her local bar trivia night or tweeting about movies.

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Science Fun

Science Fun

Science Experiments for Kids:

Science experiments you can do at home!  Explore an ever growing list of hundreds of fun and easy science experiments. Have fun trying these experiments at home or use them for science fair project ideas. Explore experiments by category, newest experiments, most popular experiments, easy at home experiments, or simply scroll down this page for tons of awesome experiment ideas!

Lava Lamp - April 2018

Making A Volcano:

Acids and Bases Can Erupt in Your Faces

science projects 3 year olds

Orange Fizz:

Dry Erase - March 2018

Awesome Experiments:

science projects 3 year olds

New Experiments:

Check Out Our Newest Experiments

science projects 3 year olds

Top Experiments:

science projects 3 year olds

Easy Experiments:

science projects 3 year olds

Storm In A Glass:

Home Made Play Dough - July 2014

Home Made Play Dough:

Snow Fluff - December 2017

Snow Fluff:

science projects 3 year olds

Snow Globe:

Squishy Turkeys - November 2017

Squishy Turkeys:

Rainbow in a Glass! - May 2017

Rainbow in a Glass:

Sizzlin' Snowballs - December 2016

Sizzlin’ Snowballs:

Jello Lenses - August 2018

Jello Lenses:

Ice Fishing - July 2018

Ice Fishing:

Super Cool Soda - Sept. 2017

Super Cool Soda:

Jack-O-Cano - October 2016


Dancing Hearts - February 2015

Dancing Hearts:

Marbled Gift Wrap - December 2018

Marbled Gift Wrap:

Massive Expanding Soap - July 2017

Massive Expanding Soap:

Surface Tension Art - February 2017

Surface Tension Art:

Fizzy Fruit

Fizzy Fruit:

Rotting Pumpkin

Rotting Pumpkin:

Explode A Bag

Explode A Bag:

Rotting Pumpkin

Invisible Extinguisher:

Paper Hovercrafts

Paper Hovercrafts:

Fun Fossil Stamps - April 2017

Fun Fossil Stamps:

Ping Pong - October 2018

Cool Crystals:

Balloon Pop! Not! - January 2017

Balloon Pop! Not!

Solar Eclipse Kit - Aug. 2017

Solar Eclipse Kit:

Moldy Apples - September 2016

Moldy Apples:

Cool Off Volcanoes

Cool Off Volcanoes:

Vinegar Pops - June 2016

Vinegar Pops:

science projects 3 year olds

Make It Rain:

Black Light Blue Beverage - October 2015

Black Light Blue Beverage:

Changing of the Leaves - September 2015

Changing of the Leaves:

Snowflakes - December 2015


Egg Drop - November 2015

Water Fireworks:

The Mind of a Student - August 2015

Mind of a Student:

Balloon Speakers - May 2016

Balloon Speakers:

Polar Bear Blubber - January 2016

Polar Bear Blubber:

Gorgeous Gooey Gobstoppers - February 2016

Gorgeous Gooey Gobstoppers:

Olympic Medals - August 2016

Olympic Medals:

Dyed Flowers - May 2015

Dyed Flowers:

Rain, Rain, Don't Go Away Gauge - April 2015

Rain, Rain, Don’t Go Away Gauge:

Blossoming Beans - March 2015

Blossoming Beans:

Sun Dial - January 2015

Butter Fingers:

Polishing Pennies - September 2014

Polishing Pennies:

Dancing Liquid - October 2014

Dancing Liquid:

Floating Egg - April 2014

Floating Egg:

Bendy Bones

Bendy Bones:

Pot of Gold - March 2016

Pot Of Gold:

Layers of Liquids - May 2014

Layers of Liquids:

Crystal Candy - March 2014

Crystal Candy:

Homeschooling Preschool

Science Experiments for 2 and 3 Year Olds

Categories Activities , Science

It’s never too early to start introducing your kids to science and these science experiments for 2 and 3 year olds are the perfect place to start!

Science Experiments for 2 and 3 Year Olds

Why Science Experiments are Important for 2 and 3 Year Olds

With the most basic introduction to things like capillary action, density, chemical reactions, magnetics and so much more, your kids will have a ton of fun without even realizing everything that they are learning about!

Making science enjoyable at such a young age will help reinforce just how much fun learning can be! 

Science experiments are a full sensory experience. Kids have a chance to observe, hear, smell, and touch throughout the activity.

Different colors and textures in the materials used for the science experiments will draw in your kids.

This also provides an opening for a conversation about what colors are present and if the colors will change when the science activity is finished. You can also discuss if things are hard, soft, bumpy, or smooth.

Kids are naturally curious which provides motivation for them to complete the activity. They are interested in the cause and effect of what will happen when something is added or removed.

Having discussions about what happened and why your kids think that happened is a great way to get them thinking and reasoning.

Most science experiments require steps to be completed in a particular order. By doing activities like the ones listed below, your kids are learning how to follow directions in order which is a skill that they will use daily in their lives.

Maybe the skills will even transfer over to them doing their nightly routine more independently. (A mom can dream, right?!?)

Science Experiments for 2 and 3 Year Olds

Supplies Needed for Science Experiments with Toddlers

While each science experiment has its own list of supplies, here is a general list of items:

  • food coloring
  • paper towels
  • cups (some call for mason jars)
  • shaving cream
  • droppers (can be used as squeeze bottles)
  • spoon / stir sticks
  • oil (plant based, mineral, or baby)
  • small objects / toy figures
  • ice cube tray or small bowls
  • baking soda
  • permanent marker

Now you are ready to have a great time experimenting!

Fun Science Experiments for 2 and 3 Year Olds

Toddler approved science experiments.

It’s never too early to start introducing your kids to science and these science experiments for two and three year olds are the perfect place to start! 

With the most basic introduction to things like capillary action, density, chemical reactions, magnetics and so much more, you kids will have a ton of fun without even realizing everything that they are learning about! Making science enjoyable at such a young age will help reinforce just how much fun learning can be! 

science projects 3 year olds

Walking Water – Science for Kids

Learn a bit of simple science with this fun and easy Walking water STEM Activity for kids. Watch and learn why the water moves and mixes colors all by itself.

science projects 3 year olds

Rain Cloud in a Jar

For a fun and easy science experiment that explores weather – try this Rain Cloud in a Jar experiment. Kids can learn how it rains through this fun and engaging science experiment.

science projects 3 year olds

Soap and Pepper Experiment- Easy Soap Science Experiment for Kids

Show your child how soap works with this simple science experiment! Use at home items to wow your kids and get them excited for STEM!

science projects 3 year olds

How to Use Skittles to Explore Primary Colors and Secondary Colors

Skittles can be used to teach children about primary colors and how to combine them to make secondary colors.

science projects 3 year olds

Sink or Float STEM Experiment with Oil and Water

Sink or float science and STEM experiments are popular with early education and early elementary school teachers.  These experiments are easy to prepare and conduct and have a fun wow factor with students.

science projects 3 year olds

Disney In Ice Escape Water Table STEM Activity

A Disney in Ice Escape activity that will allow your child to explore with different tools and help them break the Disney figurines out of the ice!

science projects 3 year olds

How to Create a Foaming Rainbow

Need a new science experiment to try in this cold weather? This foaming rainbow is sure to add color to dreary winter days!

science projects 3 year olds

How to Make Your Own Dancing Grapes Experiment With Kids (age 3+)

Are you looking for new fun science activities for kids? Then try this cool Dancing Grapes Experiment with your children.

science projects 3 year olds

Simple Volcano Experiment: Fizzing Lava Rocks

Nothing is cooler than rocks, lava, and chemical reactions. Combine all three of these things in this super-simple, super-cool simple volcano experiment where kids can learn just exactly why lava rocks are bumpy.

science projects 3 year olds

Frozen Lava Lamp Science Experiment - Show the Kids!

This fascinating frozen lava lamp science experiment is a great way to show kids the science behind why oil and water don’t mix. It’s super simple to set up with just 3 common household ingredients!

science projects 3 year olds

Color Changing Milk Science Experiment

This Color Changing Milk Experiment is so fun and easy to do with kids while they learn so much!

science projects 3 year olds

Painting with Magnets

Combine Science and art with this fun way to explore magnets in a minimal-mess-free way- painting with magnets!

science projects 3 year olds

<I Watermelon Volcano Experiment - Summer Activity for Preschoolers

Kids will go nuts over this watermelon volcano project! This watermelon experiment allows kids to witness the chemical reaction when baking soda and vinegar mix.

science projects 3 year olds

<� Balloon Rocket Experiment for Kids

This balloon rocket experiment is such a fun balloon activity for kids that teaches some simple physics while having fun. All you need for this balloon straw rocket are a few materials and you are ready to start learning, exploring, and having fun with balloon science!

science projects 3 year olds

How to Make Oobleck

Oobleck is cornstarch and water that when mixed together can act like a solid and a liquid. This oobleck recipe is simple and fun to do.

Science Experiments for 2 and 3 Year Olds


  • Homeschool Preschool Science Topics
  • What Should 2 Year Olds Be Learning?
  • Hands-on Activity Ideas for Active Preschoolers

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Go Science Girls

50+ Science Experiments for 1-2 Year Olds (Toddlers)

Can you imagine! Teaching little babies’ science has become easy now.

Yes, with the help of science experiments.

I created this page to list down all Science Experiments for Toddlers (in the age group of 1-2).

I know that toddlers crave for attention and their mind is curious to explore everything they come across. Be assured, these are golden period for any kid as 80% of brain development happens below 3 years of growth. This is the right age to introduce science.

Yes, I am not joking and I have done it with my two daughters. We have collected several experiments suitable for kids of age 1 and 2. Here in this article, you will find a brief intro for the experiment and the link where you can find the detailed steps to do the activity.

Spend quality time with kids from their young age, as tender age is the right age for them to grasp things quickly.

We have crafted our toddler section having this in mind. Our activities help develop their motor skills and kindle curiosity about science. We strongly believe some of these activities will be well suited to try at your home with your little buds.

Science Activities for 1-2 year olds

Science Activities for Toddlers (1-2 Year Olds)

Standing Hair : Static Electricity Experiment With Kids

Standing Hair : Static Electricity Experiment With Kids

Sensory Play with Jelly (Find out Solid or Liquid)

Sensory Play with Jelly (Find out Solid or Liquid)

Questacon (Australia’s National Science and Technology Centre) – Place to Visit With Kids

Questacon (Australia’s National Science and Technology Centre) – Place to Visit With Kids

Glow in the Dark Ice Cubes – Sensory, Edible Science Activity

Glow in the Dark Ice Cubes – Sensory, Edible Science Activity

STEM Toys for Girls : 2019 Topmost Toys for Curious Girls

Engineering Toys for Girls : 2019 Ultimate List for Little Geniuses

Wildlife Habitat Port Douglas : Nature Learning for Kids

Wildlife Habitat Port Douglas : Nature Learning for Kids

Safety Glasses – Advantages & Using Guide

Swirling Milk Experiment (Magic Milk Activity)

Swirling Milk Experiment (Magic Milk Activity)

Upcycled Catapult – STEM go green DIY Challenge

Static Electricity Balloon and Salt and Pepper Experiment

How To Make Balance Scales for Toddlers and Preschoolers

How To Make Balance Scales for Toddlers and Preschoolers

Delightfully Fizzy Sherbet

Looking for Even More Science Activities for Toddlers?

Here is a collection of toddler-friendly ideas that we have collected from across the web:

  • Sink or Float – Let us start with a very simple experiment presented by Happy hooligans. Kids can now understand the physics concept of sinking and floating. They will guess by putting different items in water to know if they will sink or float.
  • Magnetism – Next comes another fun and easy physics experiment. Busy toddlers site explains this experiment in detail. All you need is a bin with dust and a magnet. Yes, hold the magnet and see which all the magnetic things are.
  • Fine motor skills – This experiment will help your toddler work with fine motor skills. Mama Papa Bubba site has explained it in detail. The summary is you need to cut some self-adhesive tapes of different size and stick them on a plate or any surface. Ask kids to remove them. This will improve their fine motor skills. You can also teach them about colors by using different colored tapes.
  • Build up a tower – Kids spot has nicely demonstrated the tower building experiment. This can be done with the empty toilet roll at home. You can ask them to build a tower using them. Also, teach them counting with this activity. This will improve their focus as they look at making the tower stand erect.
  • Smell and Identify – Mamas happy hive has posted the right way to help kids learn about the smell. They have used a few food items to let kids smell and identify. However, be careful when doing this as the smell should not suffocate small kids. Choose wisely the items and have fun.
  • The Penguin Ice Play – A simple exercise to introduce states of matter and how temperature affects it. This play activity provides an opportunity to explore ice and how it melts; thus – helps the kids to learn more about Antarctic and Arctic animals and habitats. Source: Messy Little Monster .
  • Dinosaur Ice Melt Experiments – Learn about how to melt ice faster .  This could be a follow up experiment or an add on to the previous activity. Best for preschoolers and toddlers. Source: Living Montessori Now.
  • Shadow Box – Kids can now learn to color and know about this shadow box from teaching preschool.
  • Lunch menu and alphabet – Choose one alphabet and make a lunch using ingredients starting with that alphabet. This will help kids know letters. You can start with the letter in which their name starts. Easy way to teach them letters and food recipes. Source: PBS
  • Paint with yogurt – Teach color to kids and a safe way to paint. Yes, no chemicals and with yogurt different flavors your kids can become an artist today. No time for flashcards has demonstrated this well and check them out for details.
  • Bubble Experiment – This may be a huge concept for toddlers, but they will love bubbles and you can try this as given in science kids. Note: this can only be seen by kids but do not allow them to touch as the dry ice will affect their skin.
  • Color Game – The game posted on the education website will make kids identify colors. Simply collect the things posted in the instruction and get ready to make kids know the rainbow color at the age of 2.
  • How to create a Water Bottle Fountain ? The experiment teaches preschoolers about how air takes up room even though it is not visible to our eyes.  Source: Learn With Play at Home.
  • Hands-on Sink or Float Science Activity – Buggy and Buddy’s one of the fun filled activity for below two year olds. If you are looking for an easy to do experiment that shows immediate result, this one would be best fit. Encourage your kid to make predictions so you can play along to see if your kid is correct.
  • Octopus Craft – My bored toddler has presented this creative craft just with empty toilet rolls. You can take help for kids for painting and yes they will mess but will look great to spend such a great time with them.
  • Water paint – When you think that kids are too small to deal with toxic colors, then there is an idea posted in my mundane and miraculous life. Here, simply using a paint brush, water, and chalkboard you can make kids paint. Safe but makes little ones creative.
  • Ball Drop for toddlers – The motor skills of kids can be enhanced with this activity. Do you know, toddlers love to throw things? But do not worry, as this activity will pave the way to do that without any difficulty. They need a huge tub and ping pong balls. Preferably a watering can help which has a small opening. Source: kitchenfloorcrafts
  • Velcro and Pompom – This activity will teach a kid about colors and also help them develop their motor skills by sticking and removing the pompom on the Velcro. Source: teach-me-mommy
  • Buggy and Bundy fun paperclip experiment – Kids can have fun with this activity and they can count the clips. Make sure you are around and supervise them so that they don’t put any clip in the mouth.
  • Floating egg experiment – Let your kids explore why eggs are floating in water. Teach them about density of things (water and egg) and how it affects floating. Source: There’s Just One Mommy.
  • Oobleck 2 ingredient sensory play – Fun little play game for small kids that teaches sensory (touch) for your little ones. This is another activity that explain properties of liquid and solid. Try this cool activity from Messy Little Monster . Optional – add some penguins to make the role-play interesting.
  • DIY Frog Pond – Learn how to make a frog pond with this Kiwico step by step instruction. Teach a bit of biology
  • Can balloons lift bag? – The mess of less educates you and your little ones that balloon can lift bag. Count the number and blow them
  • Ice grows – Ice grow and yes it is possible with this teach preschool frozen ice experiment.
  • Flower Science – Teach some botany with these flower science activities. Happily ever mom makes you a happy mom.
  • Rainbow and Color – Kids can know the color and activate their sensory brain by following this fun day activity.
  • Oral Motor Experiment with Straw – Give exercise to tongue, cheeks and lips and improve oral motor skills of little kids with just house hold items. The experiment is all about lifting light and heavy objects using straw in fun filling way. Source: Mom Explores the Smokies .
  • Make Your Own Straw Rockets –  A fun and easy kid’s activity that teaches kids to make their own block straw rockets.  Little help from adult is needed to stick the straws together.
  • Chewing Gum for toddlers? I agree that kids cannot chew gum but they can do this experiment with gums and be around don’t leave them unattended. Get details from meet penny.
  • Milk science – Laughing science kids know the kid’s mentality and attracted them with this milk science experiment.
  • Colors and melting ice – Artful parent teaches you to be artful too. Try this melting ice experiment.
  • Friction Lesson with carrots – Carrots are orange presents you with an easy experiment that will even allow a toddler to know about friction.
  • Toothpaste for elephants – Fun home with kids is really fun allowing babies to make toothpaste for elephants.
  • Sensory Activity using Magnetic Discovery Bottles – Preschool Inspirations came out with a detailed post on using discovery bottles and its wide variety of uses for kids. The post also can help teach your kids about magnetism and its principles. (We prefer using big sized magnets).
  • Explore what melts in the sun ? Perfect experiment for a lazy day on summer. Try out with different products and see. Source: Frugal Fun for Boys and Girls.
  • Colored Ants – Life with Moore babies makes ants colorful.
  • Sensory activities for babies – 5 simple experiments for toddlers all about sensory activities.
  • Leaf rubbing science – Sixth bloom explains in detail about the leaf rubbing science. STEAM experiment.
  • Seed science – Pinky Stripey Socks explains very clearly about this STEM activity and its all about seeds.
  • Experiment with Straw – Learn about oral motor science from the Mom Explores the Smokies.
  • Explore what melts in the sun – Sun produces heat and do you know there are certain things that melt at that temperature. Show them to kids following Frugal Fun for Boys and Girls steps.
  • Eggs float too Messy Little Moms do not make any mess but teach toddlers about the egg and its properties.
  • Ice melts faster than you think – Living Montessori Now explains about the properties of ice and when they melt faster.
  • Magnetism with bottles – Bottles can help you understand magnetism. Preschool inspirations teach you the tactics.
  • Fizzy lemonade – Lemonade foaming experiment makes kids enjoy with the fizzing sound. Source: Learn with Play at Home
  • Straw Rockets – Housing A Forest launches a rocket with straw.
  • Sensory activity for kids –Messy Little Monster makes penguins dance and you can teach a kid about the sensory activity.
  • Water Bottle Fountain – We had seen magnetism with a water bottle and its time to make a fountain with a water bottle. Source: Learn With Play at Home.
  • Ice cream recipe – Making ice cream in a plastic bag is simple and easy with Science bob experiment.
  • Water Science – Water walks and that’s a wow experiment for kids presented by coffee cups and crayons.
  • Crystallization made simple with kids – Follow Wiki to grow rock candy just in a glass at home.
  • Microwave Ivory soap – Source: Stevespanglerscience. Cook soap in the microwave to see what happens.
  • Bean in a cup – Now bean can be grown at home to show the roots to kids and this great activity is explained in Science Sparks.
  • Freezing bubbles – Bubbles freeze kids can touch and feel. Best winter experiment. Source: Mommy Poppins
  • Ink made invisible – Just use lemon and make ink that goes invisible. Science Kids experiment.
  • Balls, shapes, and bounce – Make your own ball in any shape and see them how they bounce. Source: Come together, kids.
  • The parachute that flies high – With a plastic bag it is now possible to make a parachute.
  • Coin and Surface tension – Put water droplets on coins to explain surface tension to kids. Do it in the science kiddo way.
  • Make your own fizzy lemonade – Another fun filled science activity for a hot summer day. Cool yourself with your own lemonade. This is Taste-safe activity that your kids will enjoy making and drinking. Source: Learn with Play at Home.

I am glad to give you so many science experiments that you can teach toddlers. Don’t think these are a high standard for kids. You will be amazed to see their grasping power at this young age. Try and share your experience.

Well, if you are in activity spree and looking for more science ideas for toddlers?

Most of the activities we try are taste-safe (non toxic and no hazards). If you have a grown up kid – try our Science for 3-4 Year Olds page for ideas on experiments that doesn’t have any mouthing things. We keep our experiments open-ended; that means you can create variations of these activities to suit your kid’s age or personal favorite.

Though we encourage kids to try these activities independently, we request you to have a constant supervision i.e. be with the kid when they try these activities. Only parents will know what activity will suit their kids (based on age group or interest). Check for more information here .

  • Grades 6-12
  • School Leaders

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70 Easy Science Experiments Using Materials You Already Have On Hand

Because science doesn’t have to be complicated.

science projects 3 year olds

If there is one thing that is guaranteed to get your students excited, it’s a good science experiment! While some experiments require expensive lab equipment or dangerous chemicals, there are plenty of cool projects you can do with regular household items. Regardless of how empty your cabinets may be, we think you are likely to have at least some of these things lying around at home. Watch as your students engineer a bridge, solve environmental issues, explore polymers, or work with static electricity. We’ve rounded up a big collection of easy science experiments that anybody can try, and kids are going to love them!

1. Amplify a smartphone

DIY smartphone amplifier made from paper cups

No Bluetooth speaker? No problem! Put together your own from paper cups and toilet paper tubes.

Learn more: Mum in the Madhouse

2. Send a teabag flying

Empty tea bags burning into ashes

Hot air rises, and this experiment can prove it! You’ll want to supervise kids with fire, of course. For more safety, try this one outside!

Learn more: Coffee Cups and Crayons

3. Taste the rainbow

Skittles form a circle around a plate. The colors are bleeding toward the center of the plate. (easy science experiments)

Teach your students about diffusion while creating a beautiful and tasty rainbow! You’ll definitely want to have extra Skittles on hand so your class can enjoy a few as well!

Learn more: ToucanBox

4. Watch the water rise

Two side-by-side shots of an upside-down glass over a candle in a bowl of water, with water pulled up into the glass in the second picture

Learn about Charles’s Law with this simple experiment. As the candle burns, using up oxygen and heating the air in the glass, the water rises as if by magic.

Learn more: Team Cartwright

5. Set raisins dancing

Raisins floating in a glass of fizzy water

This is a fun version of the classic baking soda and vinegar experiment, perfect for the younger crowd. The bubbly mixture causes raisins to dance around in the water.

Learn more: 123 Homeschool 4 Me/Dancing Raisins

6. Race a balloon-powered car

Car made from cardboard with bottlecap wheels and powered by a blue balloon

Kids will be amazed when they learn they can put together this awesome racer using cardboard and bottle-cap wheels. The balloon-powered “engine” is so much fun too.

Learn more: ProLab

7. Crystallize your own rock candy

Colorful rock candy on wood sticks

Crystal science experiments teach kids about supersaturated solutions. This one is easy to do at home, and the results are absolutely delicious!

Learn more: Growing a Jeweled Rose

8. Make elephant-sized toothpaste

children are seen from the shoulders down standing behind three bottles that are overflowing with red, yellow, and green fluid. (easy science experiments)

This fun project uses yeast and a hydrogen peroxide solution to create overflowing “elephant toothpaste.” You can also add an extra fun layer by having the kids create toothpaste wrappers for their plastic bottles.

Learn more: Steve Spangler Science

9. Repel glitter with dish soap

Square dish filled with water and glitter, showing how a drop of dish soap repels the glitter

Everyone knows that glitter is just like germs—it gets everywhere and is so hard to get rid of! Use that to your advantage and show kids how soap fights glitter and germs.

Learn more: Living Life & Learning

10. Blow the biggest bubbles you can

Girl making an enormous bubble with string and wire (Easy Science Experiments)

Add a few simple ingredients to dish soap solution to create the largest bubbles you’ve ever seen! Kids learn about surface tension as they engineer these bubble-blowing wands.

Learn more: Scholastic/Dish Soap Bubbles

11. Make neon flowers

Eight daisies are shown in different neon colors. The water in the vases they are in are the same color as the daisies. (easy science experiments)

We love how simple this project is to re-create since all you’ll need are some gerbera daisies, food coloring, glasses, and water. The end result is just so beautiful!

Learn more: My Child Care Academy/Neon Flower

12. Build a Ferris wheel

Miniature Ferris Wheel built out of colorful wood craft sticks

You’ve probably ridden on a Ferris wheel, but can you build one? Stock up on wood craft sticks and find out! Play around with different designs to see which one works best.

Learn more: Teachers Are Terrific and eHow

13. Learn about capillary action

Glasses of colored water with paper towel strips leading from one to the next

Kids will be amazed as they watch the colored water move from glass to glass, and you’ll love the easy and inexpensive setup. Gather some water, paper towels, and food coloring to teach the scientific magic of capillary action.

Learn More: 123 Homeschool 4 Me/Capillary Action

14. Demonstrate the “magic” leakproof bag

Plastic bag full of water with pencils stuck through it (Easy Science Experiments)

So simple and so amazing! All you need is a zip-top plastic bag, sharp pencils, and some water to blow your kids’ minds. Once they’re suitably impressed, teach them how the “trick” works by explaining the chemistry of polymers.

Learn more: Paging Fun Mums

15. Design a cell phone stand

Basic cell phone stand made from wood craft sticks, paper clips, and rubber bands (Sixth Grade Science)

Use your engineering skills and items from around the house to design and build a cell phone stand.

Learn more: Science Buddies/Cell Phone Stand

16. Give a balloon face a beard

A pink balloon has a face drawn on it. It is hovering over a plate with salt and pepper on it (easy science experiments)

Equally educational and fun, this experiment will teach kids about static electricity using everyday materials. Kids will undoubtedly get a kick out of creating beards on their balloon person!

Learn more: Go Science Girls/Static Electricity

17. Re-create the water cycle in a bag

Plastic bag of blue water with a sun and clouds drawn on it (Easy Science Experiments)

You can do so many easy science experiments with a simple zip-top bag! Fill one partway with water and set it on a sunny windowsill to see how the water evaporates up and eventually “rains” down.

Learn more: Grade School Giggles

18. Conduct an egg drop

Egg surrounded by paper straws taped into place

Put all their engineering skills to the test with an egg drop! Challenge kids to build a container from stuff they find around the house that will protect an egg from a long fall (this is especially fun to do from upper-story windows).

Learn more: Buggy and Buddy/Egg Drop

19. Engineer a drinking straw roller coaster

Student building a roller coaster of drinking straws for a ping pong ball (Fourth Grade Science)

STEM challenges are always a hit with kids. We love this one, which only requires basic supplies like drinking straws.

Learn more: Frugal Fun for Boys and Girls/Straw Roller Coaster

20. Use apple slices to learn about oxidation

Several apple slices are shown on a clear plate. There are cards that label what they have been immersed in (including salt water, sugar water, etc.) (easy science experiments)

Have students make predictions about what will happen to apple slices when immersed in different liquids, then put those predictions to the test! Finally, have them record their observations.

Learn more: Jennifer Findley/Apple Oxidation

21. Build a solar oven

Solar oven built from a pizza box with s'mores inside

Explore the power of the sun when you build your own solar ovens and use them to cook some yummy treats. This experiment takes a little more time and effort, but the results are always impressive. The link below has complete instructions.

Learn more: Desert Chica

22. Float a marker man

Float a Marker Man on water with sharpie

Their eyes will pop out of their heads when you “levitate” a stick figure right off the table! This experiment works due to the insolubility of dry-erase marker ink in water, combined with the lighter density of the ink.

Learn more: Gizmodo

23. Discover density with hot and cold water

Mason jars connected at the mouths, with layers of colored water

There are a lot of easy science experiments you can do with density. This one is extremely simple, involving only hot and cold water and food coloring, but the visuals make it appealing and fun.

Learn more: STEAMsational

24. Find your way with a DIY compass

DIY compass made from a needle floating in water

Here’s an old classic that never fails to impress. Magnetize a needle, float it on the water’s surface, and it will always point north.

Learn more: STEAM Powered Family

25. Learn to layer liquids

Clear cylinder layered with various liquids in different colors

This density demo is a little more complicated, but the effects are spectacular. Slowly layer liquids like honey, dish soap, water, and rubbing alcohol in a glass. Kids will be amazed when the liquids float one on top of the other like magic (except it is really science).

Learn more: Wonder How To

26. Crush a can using air pressure

Student's gloved hand holding tongs over a crushed soda can sitting in a bowl of water (Seventh Grade Science)

Sure, it’s easy to crush a soda can with your bare hands, but what if you could do it without touching it at all? That’s the power of air pressure!

Learn more: Frugal Fun for Boys and Girls/Can Crush

27. Make homemade bouncy balls

Two children are shown (without faces) bouncing balls on a white table (easy science experiments)

These homemade bouncy balls are easy to make since all you will need is glue, food coloring, borax powder, cornstarch, and warm water. You will want to store them inside a container like a plastic egg because they will flatten out over time.

Learn more: Come Together Kids/Make Your Own Bouncy Balls

28. Build a Da Vinci bridge

Mini Da Vinci bridge made of pencils and rubber bands (Easy Science Experiments)

There are plenty of bridge-building experiments out there, but this one is unique. It’s inspired by Leonardo da Vinci’s 500-year-old self-supporting wooden bridge. Learn how to build it at the link, and expand your learning by exploring more about Da Vinci himself.

Learn more: iGame Mom

29. Grow a carbon sugar snake

Giant carbon snake growing out of a tin pan full of sand

Easy science experiments can still have impressive results! This eye-popping chemical reaction demonstration only requires simple supplies like sugar, baking soda, and sand.

Learn more: KiwiCo/Carbon Sugar Snake

30. Create eggshell chalk

Chunk of pink chalk lying on paper towels (Easy Science Experiments)

Eggshells contain calcium, the same material that makes chalk. Grind them up and mix them with flour, water, and food coloring to make your very own sidewalk chalk.

Learn more: Kidspot

31. Make a basic sundial

a large piece of cardboard has a white circle in the center with a pencil standing upright in the middle of the circle. Rocks are on all four corners holding it down.

While people use clocks or even phones to tell time today, there was a time when a sundial was the best means to do that. Kids will certainly get a kick out of creating their own sundials using everyday materials like cardboard and pencils.

Learn more: PBS Kids/Sundial

32. Learn about plant transpiration

Plastic zipper bag tied around leaves on a tree (Easy Science Experiments)

Your backyard is a terrific place for easy science experiments! Grab a plastic bag and rubber band to learn how plants get rid of excess water they don’t need, a process known as transpiration.

Learn more: Teach Beside Me

33. Make naked eggs

Child holding a raw egg without its shell

This is so cool! Use vinegar to dissolve the calcium carbonate in an eggshell to discover the membrane underneath that holds the egg together. Then, use the “naked” egg for another easy science experiment that demonstrates osmosis .

Learn more: Making Memories With Your Kids

34. Make sparks with steel wool

Steel wool on fire in a tin pan (Easy Science Experiments)

All you need is steel wool and a 9-volt battery to perform this science demo that’s bound to make their eyes light up! Kids learn about chain reactions, chemical changes, and more.

Learn more: The Homeschool Scientist

35. Practice stop-motion animation

An image is divided into four separate images. There are small action figures in front of a tablet.

This is the perfect experiment for the budding filmmaker since they can decide on a backdrop, characters (toys), and story. Use a good stop-motion animation app to bring the film to life!

Learn more: Tinker Lab/Stop-Motion Animation

36. Turn milk into plastic

Student scooping plastic fragments out of a mug next to bottle of vinegar and measuring glass of milk (Easy Science Experiments)

This sounds a lot more complicated than it is, but don’t be afraid to give it a try. Use simple kitchen supplies to create plastic polymers from plain old milk. Sculpt them into cool shapes when you’re done!

Learn more: Science Buddies/Milk Into Plastic

37. Levitate a Ping-Pong ball

Student holding the cut off top of a bottle with a straw attached through the lid, with a ping pong ball floating over top

Kids will get a kick out of this experiment, which is really all about Bernoulli’s principle. You only need plastic bottles, bendy straws, and Ping-Pong balls to make the science magic happen.

Learn more: Buggy and Buddy/Floating Ping-Pong Ball

38. Launch a two-stage rocket

Two long balloons turned into a rocket with straws, rubber bands, and binder clips (Easy Science Experiments)

The rockets used for space flight generally have more than one stage to give them the extra boost they need. This easy science experiment uses balloons to model a two-stage rocket launch, teaching kids about the laws of motion.

Learn more: Science Buddies/Two-Stage Rocket

39. Pull an egg into a bottle

Empty bottle next to a bowl of eggs and a cup of matches with a plastic straw (Easy Science Experiments)

This classic easy science experiment never fails to delight. Use the power of air pressure to suck a hard-boiled egg into a jar, no hands required.

Learn more: Left Brain Craft Brain

40. Test pH using cabbage

Test tubes filled with purple liquid (Easy Science Experiments)

Teach kids about acids and bases without needing pH test strips! Simply boil some red cabbage and use the resulting water to test various substances—acids turn red and bases turn green.

Learn more: Education Possible

41. Clean some old coins

Pennies in containers of cola, vinegar and salt, apple juice, water, catsup, and vinegar (Easy Science Experiments)

Use common household items to make old oxidized coins clean and shiny again in this simple chemistry experiment. Ask kids to predict (hypothesize) which will work best, then expand the learning by doing some research to explain the results.

Learn more: Gallykids

42. Clean up an oil spill

Students sit around a table that has a tin pan filled with blue liquid wiht a feather floating in it (easy science experiments)

Before conducting this experiment, teach your students about engineers who solve environmental problems like oil spills. Then, have your students use provided materials to clean the oil spill from their oceans.

Learn more: Science After School Blogspot/Oil Spill

43. Blow up a balloon—without blowing

Two plastic water bottles with inflated balloons attached to the tops (Easy Science Experiments)

Chances are good you probably did easy science experiments like this when you were in school yourself. This well-known activity demonstrates the reactions between acids and bases. Fill a bottle with vinegar and a balloon with baking soda. Fit the balloon over the top, shake the baking soda down into the vinegar, and watch the balloon inflate.

Learn more: All for the Boys

44. Construct a homemade lava lamp

Plastic bottle with blobs of blue oil floating in water

This 1970s trend is back—as an easy science experiment! This activity combines acid/base reactions with density for a totally groovy result.

Learn more:

45. Whip up a tornado in a bottle

Upside-down glass bottle with a water tornado inside (Easy Science Experiments)

There are plenty of versions of this classic experiment out there, but we love this one because it sparkles! Kids learn about a vortex and what it takes to create one.

Learn more: Cool Science Experiments HQ

46. Explore how sugary drinks affect teeth

Four cups of different liquids with eggs floating in them (Easy Science Experiments)

The calcium content of eggshells makes them a great stand-in for teeth. Use eggs to explore how soda and juice can stain teeth and wear down the enamel. Expand your learning by trying different toothpaste and toothbrush combinations to see how effective they are.

Learn more: Feels Like Home

47. Monitor air pressure with a DIY barometer

Homemade barometer using a tin can, rubber band, and ruler

This simple but effective DIY science project teaches kids about air pressure and meteorology. They’ll have fun tracking and predicting the weather with their very own barometer.

Learn more: Edventures With Kids

48. Mummify a hot dog

Two hotdogs, one smaller and darker than the other, on a paper towel (Easy Science Experiments)

If your kids are fascinated by the Egyptians, they’ll love learning to mummify a hot dog! No need for canopic jars ; just grab some baking soda and get started.

Learn more: Science Buddies/Science of Mummification

49. Extinguish flames with carbon dioxide

Series of lit tea lights with a glass pitcher

This is a fiery twist on acid-base experiments. Light a candle and talk about what fire needs in order to survive. Then, create an acid-base reaction and “pour” the carbon dioxide to extinguish the flame. The CO2 gas acts like a liquid, suffocating the fire.

Learn more: Sick Science!/YouTube

50. Make a magnifying glass from ice

A child holds up a pice of ice to their eye as if it is a magnifying glass. (easy science experiments)

Students will certainly get a thrill out of seeing how an everyday object like a piece of ice can be used as a magnifying glass. Be sure to use purified or distilled water since tap water will have impurities in it that will cause distortion.

Learn more: STEAMsational/Ice Magnifying Glass

51. Do the Archimedes squeeze

Child dropping a ball of aluminum foil into a container of water (Easy Science Experiments)

It sounds like a wild dance move, but this easy science experiment demonstrates Archimedes’ principle of buoyancy. All you need is aluminum foil and a container of water.

Learn more: Science Buddies/Archimedes Squeeze

52. Step through an index card

Student stretching out an index card cut into a large rectangle (Easy Science Experiments)

This is one easy science experiment that never fails to astonish. With carefully placed scissor cuts on an index card, you can make a loop large enough to fit a (small) human body through! Kids will be wowed as they learn about surface area.

Learn more: Mess for Less

53. Stand on a pile of paper cups

Child standing on a stack of paper cups and cardboard squares

Combine physics and engineering and challenge kids to create a paper cup structure that can support their weight. This is a cool project for aspiring architects.

Learn more: Science Sparks

54. Mix up saltwater solutions

Glasses of basking soda water, sugar water, plain water, and salt water with red stones in them (Easy Science Experiments)

This simple experiment covers a lot of concepts. Learn about solutions, density, and even ocean science as you compare and contrast how objects float in different water mixtures.

Learn more: Science Kiddo

55. Construct a pair of model lungs

Plastic bottle with pink and black balloons inside, with student pulling a red balloon diaphragm (Easy Science Experiments)

Kids get a better understanding of the respiratory system when they build model lungs using a plastic water bottle and some balloons. You can modify the experiment to demonstrate the effects of smoking too.

Learn more: Surviving a Teacher’s Salary

56. Test out parachutes

Child standing on a stepladder dropping a toy attached to a paper parachute

Gather a variety of materials (try tissues, handkerchiefs, plastic bags, etc.) and see which ones make the best parachutes. You can also find out how they’re affected by windy days or find out which ones work in the rain.

Learn more: Inspiration Laboratories

57. String up some sticky ice

Piece of twine stuck to an ice cube (Easy Science Experiments)

Can you lift an ice cube using just a piece of string? This quick experiment teaches you how. Use a little salt to melt the ice and then refreeze the ice with the string attached.

Learn more: Playdough to Plato

58. Experiment with limestone rocks

Child pouring vinegar over a rock in a bowl

Kids  love to collect rocks, and there are plenty of easy science experiments you can do with them. In this one, pour vinegar over a rock to see if it bubbles. If it does, you’ve found limestone!

59. Recycle newspaper into an engineering challenge

Kids stacking a textbook into a cone of newspaper tubes (Easy Science Experiments)

It’s amazing how a stack of newspapers can spark such creative engineering. Challenge kids to build a tower, support a book, or even build a chair using only newspaper and tape!

Learn more: STEM Activities for Kids

60. Turn a bottle into a rain gauge

Plastic bottle converted to a homemade rain gauge (Easy Science Experiments)

All you need is a plastic bottle, a ruler, and a permanent marker to make your own rain gauge. Monitor your measurements and see how they stack up against meteorology reports in your area.

Learn More: NurtureStore

61. Use rubber bands to sound out acoustics

White plastic cup with rubber bands stretched across the opening (Easy Science Experiments)

Explore the ways that sound waves are affected by what’s around them using a simple rubber band “guitar.” (Kids absolutely love playing with these!)

62. Send secret messages with invisible ink

I Love You written in lemon juice on a piece of white paper, with lemon half and cotton swabs

Turn your kids into secret agents! Write messages with a paintbrush dipped in lemon juice, then hold the paper over a heat source and watch the invisible become visible as oxidation goes to work.

Learn more: KiwiCo/Invisible Ink

63. Build a folded mountain

Pile of layered towels being pushed together between two plastic tubs

This clever demonstration helps kids understand how some landforms are created. Use layers of towels to represent rock layers and boxes for continents. Then pu-u-u-sh and see what happens!

Learn more: The Chaos and the Clutter

64. Play catch with a catapult

Catapult and catcher made from plastic cups, pencils, and wood craft sticks (Easy Science Experiments)

Catapults make fun and easy science experiments, but we like the twist on this one that challenges kids to create a “receiver” to catch the soaring object on the other end.

Learn more: Science Buddies/Ball Launcher Challenge

65. Take a Play-Doh core sample

Layers of Play Doh with holes poked into it

Learn about the layers of the Earth by building them out of Play-Doh, then take a core sample with a straw. ( Love Play-Doh? Get more learning ideas here. )

Learn more: Line Upon Line Learning

66. Project the stars on your ceiling

Student poking holes in the shape of a constellation on the bottom of a paper cup (Easy Science Experiments)

Use the video lesson in the link below to learn why stars are only visible at night. Then create a DIY star projector to explore the concept hands-on.

Learn more: Mystery Science

67. Build a better umbrella

Cupcake liner turned upside-down over wood craft sticks with water being poured over top

Challenge students to engineer the best possible umbrella from various household supplies. Encourage them to plan, draw blueprints, and test their creations using the scientific method.

Learn more: Raising Lifelong Learners

68. Make it rain

Glass jar of water with shaving cream floating on top, with blue food coloring dripping through, next to a can of shaving cream

Use shaving cream and food coloring to simulate clouds and rain. This is an easy science experiment little ones will beg to do over and over.

Learn more: Mrs. Jones’ Creation Station

69. Use water to “flip” a drawing

Drawing of a hand with the thumb up and a glass of water

Light refraction causes some really cool effects, and there are multiple easy science experiments you can do with it. This one uses refraction to “flip” a drawing; you can also try the famous “disappearing penny” trick .

Learn more: Go Science Kids

70. Send a soda geyser sky-high

Students looking surprised as foamy liquid shoots up out of diet soda bottles

You’ve always wondered if this really works, so it’s time to find out for yourself! Kids will marvel at the chemical reaction that sends diet soda shooting high in the air when Mentos are added.

Learn more: Scholastic/Soda Explosion

Looking for even more science fun? Get the best science experiments for grades K-8 here.

Plus, sign up for our newsletters to get all the latest learning ideas, straight to your inbox..

Science doesn't have to be complicated! Try these easy science experiments using items you already have around the house or classroom.

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55 Best Science Experiments for High School Labs and Science Fairs

Fire up the Bunsen burners! Continue Reading

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Science Sensory Activities For 3 5 Year Olds

Science projects for preschoolers.


I used to think science was above the heads of preschool aged children until I became the science parent at my childrens coop preschool and saw just how wrong I was! Some of the best preschool activities are science related. Preschool age children are inquisitive and open-minded, perfect traits for budding young scientists! Science at a preschool level is a lot of fun, kids are truly mesmerized by chemical reactions, love exploring nature, and jump to build things.

Totally Cool Oil And Water Science Experiment

They actually did this oil and water science experiment several times on this particular day and are already talking about doing it again. They still LOVE our lava lamp science experiment best, but this one is definitely a keeper.

It is very simple to set up this activity. You only need a few supplies that you probably already have around the house.

Supplies Needed:

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  • Baby oil or vegetable oil
  • Pipettes or droppers

*If you decide to use baby oil and watercolors, make sure your kids wont put this in their mouths! As always, keep a close eye on your kids any time that you are doing a science experiment.

  • Put water in several cups and add food coloring or liquid watercolors to the water. Then stir to combine.
  • Place a pipette in each colored glass of water.
  • Fill a cup about half way with oil.

Now let the kids have fun exploring oil and water!

While enjoying this science exploration kids will explore how oil and water do not mix together. For young children, there is no need to fully explain the concept behind it, but it is a great start to simply explore the two liquids and see how they behave when mixed together.

For kids in early elementary you can explain that oil molecules are only attracted to other oil molecules and water molecules are attracted to water molecules. So they dont mix together. The reason the oil floats on top is because the oil is less dense than water.

Sensory Science Experiments For Preschoolers

Homemade Butter Science Experiment | 123 Homeschool for Me

I hope this collection of tips to get kids excited about science, as well as the sensory science experiments for younger kids and the awesome science experiments for older kids weve included inspires you in your quest to raise inquisitive learners!

We should not teach children the sciences but give them a taste for them. -Jean Jacques Rosseau

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If you enjoyed this collection of sensory science experiments for younger kids and awesome science fair projects for older kids, please share this post on Pinterest!

And if youre looking for more ways to have fun with your students and/or children, please follow our Kids board where we share all kinds of fun ideas we find each day!

Read Also: Oregon State University Online Computer Science

Fun And Hands On Experiences

As with all activities you do with kids, the number one goal is fun. If they arent having fun , whats the point? No one is learning and it is only going to end with negative associations towards STEM.

So the first thing to focus on is having fun.

The next most important thing is to let your kids get in there and have hands-on experiences. Demonstrations can be a great tool, but try to let the kids take the lead in STEM activities for preschoolers.

Let them touch, smell, see, do, and just experience as much as you can.

Why Is It Important To Do Science Experiments With Kids

Activities for 3 Year Olds

With more classrooms focusing on STEM education a multifaceted approach to learning that combines science, technology, engineering, and math to develop a childs problem solving and critical thinking skills while also encouraging creativity, communication, and teamwork finding ways to foster a love for science is becoming more important than ever. Engaging children in science experiments at home and in the classroom:

  • Encourages higher level thinking
  • Teaches children not to accept the status quo and make their own predictions
  • Fosters an interest and excitement for research
  • Provides opportunities for failure in a safe environment
  • Encourages innovative and creative thinking
  • Teaches children how to work collaboratively

Unfortunately, kids are often taught that science is boring and difficult, and if parents and teachers dont intervene, these negative thoughts can persist through high school and beyond, making children less interested in and willing to participate in STEM-based subjects. This can have a huge impact on their academic growth and development, not to mention their career paths.

Don’t Miss: Seattle Academy Of Arts And Sciences

Exploring The 5 Senses

Exploring the 5 Senses While Playing Outside A little while ago I decided to explore the 5 senses with my toddlers while playing outside. It was such a fun experience! We explored our senses of touch, sight, hearing, smelling, and even tasting. Your toddlers will love this fun way to explore their five senses.

Sensory Play: 20 Great Activities For Your Toddler Or Preschooler

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When adults think about teaching young kids they often imagine flashcards with letters and numbers, memorizing the alphabet, and reading stories about everyday activities.

While reading, singing, and interacting with learning materials can be a valuable way of getting to know the world, nothing beats sensory play for young children.

While sensory play has been around since the beginning of time and often occurs naturally for young children, many parents voice confusion about what exactly sensory play is and how it can benefit their child.

You May Like: Georgia Tech Computer Science Online

> > > Step : Explore And Play With Sensory Activities For Preschoolers

Sensory activities for preschoolers is essential to child development.

Sensory play stimulates the senses allowing the brain to learn through play. Sensory activities have been described as food for the brain. You can read more about the importance of sensory play here.

An easy way to integrate sensory play into your classroom is with discovery tubs or sensory bins/tables.

They are easy to set up and encourage hands-on play. As your children are exploring the sensory table or discovery tub observe their questions and play and use that to connect their interests to additional science activities and experiments.

Take your preschool learning theme and brainstorm ways you can create a sensory experience that relates to your theme. Check out the links below to help get started.

Sense Of Smell Activities:

Lets get started! This might get a little stinky But use that nose to find out what smells!

Does it smell good? Can you describe how it smells?Do they smell the same?Can you tell me what is making the smell?

These are all great questions to keep in mind as you explore these activities and smell with your noses!

Sense of Smell Sensory Activities

Smell it and guess.

Also Check: Delaware Museum Of Nature & Science

Science Activities For Toddlers

Looking for Even More Science Activities for Toddlers?

Here is a collection of toddler-friendly ideas that we have collected from across the web:

I am glad to give you so many science experiments that you can teach toddlers. Dont think these are a high standard for kids. You will be amazed to see their grasping power at this young age. Try and share your experience.

Five Senses Activity Plans

Ive teamed up with other early childhood teachers and homeschoolers to put together these hands-on five senses activity plans for toddlers and preschoolers!

Easy to follow activities that include activity modifications and adaptations to meet the needs of all learners.

Note: This is a digital product. That means when you make a purchase, you will be emailed a link to the activities.

For more information, click on the graphics below:

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Want Even More Preschooler Science Activities

If you are looking for MORE science ideas for preschool aged kids, you might also like:

  • Make your own mini microscope using household items, on Childhood101 .
  • Can you dissolve a lollipop ? From Fantastic Fun and Learning .
  • Learn about prisms and make rainbows ! From Buggy and Buddy .
  • Ive yet to meet a kid who doesnt like making potions, and they are such a fun way to explore safe chemical reactions in a play-based, hands-on way. Preschool Powol Packets has a cool Love Potion , Buggy and Buddy add dishwashing liquid to make their potions extra foamy .
  • Baking soda and vinegar are such a winning fizzy combination with this age group. NurtureStore shows how her girls created glittery fizzing reactions in heart shaped molds . Buggy and Buddy shows how you can add coloured vinegar with pipettes to create a beautiful fizzing work of art. Preschool Powol Packets has a sparkly explosions idea too!
  • Heres a cool way to make a DIY musical instrument that only one person can hear ! The science of sound from KC Edventures .
  • Are your kids curious about what causes frost and condensation ? Heres an easy way to recreate the effect in your own kitchen. From Look, Were Learning .
  • Rhythms of Play has a Fishing with Magnets idea that looks super fun!
  • Heres a cool water density experiment that uses oil and salt. From Buggy and Buddy .

Sensory Bins For Kids

While kids are touching, smelling, listening and even sometimes tasting theyre exploring and learning without even realizing it and that is what sensory activities are all about. You can change out your own sensory bins all the time because we have over 200 different sensory box ideas for your kids to play with!

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Sensory Activities For Kids

Fun at Home With Kids

Sensory play can be extremely beneficial for a childs development: it can refine motor skills, encourage cognitive thinking and can help calm an anxious kid. Materials with interesting sensory attributes can help children make observations about the world , all while entertaining them for longer than traditional toys or crafts . Read on for a collection of fun sensory activities to tackle with your family during your next free afternoon.

Sensory Ideas For 2 And 3

*This post contains affiliate links. Read more here .

Whether theyre moving , listening , touching , smelling or doing all of these at the same time kids learn and grow best when they have lots of opportunities to interact with their surroundings using their sensory systems.

Two and three-year-olds are developing at an incredible rate theyre talking, walking , and exploring all day every day. Kids this age cant get enough sensory play check out these fun and simple sensory ideas for your little one!

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Cups With Holes & Cups Without Holes

I added two cups with holes & two without holes for the children to explore with the water. I used clear disposable punch cups & used a drafting compass to poke holes in the bottom of two of the cups. Oddly enough, the compass is one of my handiest tools in the classroom I have used it to draw many circles & poke many holes in things. The kids enjoy drawing circles with them, too. Anyway, they LOVED this sensory table loved making & watching the rain.

Paint With Your Food: Edible Art Activities

Sensory play doesnt have to be limited to just squishing things with your hands, you can create art at the same time!

My kids first finger painting experience was with taste safe materials because come on, they are going to taste that stuff. There are really easy items you can use to make art with your kids. True, you cant save a lot of it forever , but the experience is worth it.

1. Baby Food

Have leftover jars? Let them paint with it!

2. Condiments

My kids would smear ketchup and mustard everywhere if I let them. I dont really blame them, that bright red and yellow are so appealing! Let them go for it with condiment painting.

3. Skittles Paint

If you put a couple of Skittles into a little bit of water you will make a watercolor-like paint! This is a fun one because you can mix the Skittles colors to create your own colors.

4. Yogurt Paint

Yogurt on its own is great for painting. It has a smooth texture that glides nicely over the paper. Use colored yogurt or add food coloring to make your own!

5. Kool Aid Paint

This is a way to color your yogurt paints. Add about half a packet of Kool Aid to half a cup of yogurt to get your paint. Use unsweetened yogurt so you dont add too much sugar . This paint has a great scent too, adding in an additional sensory element!

6. Pudding Paint

Yes, same idea as the yogurt paint. Using chocolate pudding is great for making construction scenes, creating backdrops for dinosaurs, or painting a garden.

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Sensory Play Ideas For Sound

26. Dont Ring the Bells! Obstacle Course: Try your hand at creating this fun outdoor obstacle course for a fun, Christmas-themed sensory and movement activity.

27. Rainstick Sensory Bottle

28. Exploring Sound Treasure Basket : Create this awesome sound treasure basket, perfect for little ones who love to explore sound.

Introducing The Scientific Method

The scientific method is an organized way of running science experiments. This is important even for preschool children. We dont always follow it exactly when we do casual at-home science experiments, but it is a good idea to help kids learn to use a logical approach to their experimenting.

The scientific method is about so much more than just logical STEM projects, it teaches real-world life lessons and skills. You can read more here about how the scientific method sets kids up for powerful problem solving: Life Lessons from the Scientific Method .

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Sensory Play Ideas For Sight

13. Fizzy Cloud Dough from Powerful Mothering: This recipe to make fizzy cloud dough is the perfect dual function sensory play and science experiment!

14. I Spy Sensory Play from You Clever Monkey: Check out this I spy activity, perfect for both sensory play and learning, with free printable I spy cards!

15. Slow Motion Sensory Bottle : Create this cool sensory bottle awesome for emotional regulation or moments when kids need a little calm.

16. Mermaid Fabric Sensory Board from Homegrown Friends: Try your hand at making this quick and easy mermaid sensory board, great for hours of fun and sensory play!

17. Water Beads Sensory Window Bags from Parenting Chaos: This super satisfying water bead sensory bag is great for mess free sensory play!

18. Rainbow Chickpeas from And Next Comes L: Check out this fantastic tutorial for super colourful chick pea sensory play!

19. Exploring Magnet Sensory Play from And Next Comes L: Have a go at making this magnet sensory bin, great for encouraging kids to explore with science!

Sensory Bin Ideas For Seasonal Play

ð©ð?½â?ð?³CAPS KITCHEN ð©ð?½â?ð?³ One of the easiest water ð¦ sensory bins Iâve done ...

Easter Egg Sensory Play Activity This activity is perfect for Easter sensory play. Toddlers can scrunch, tear, roll and squish tissues paper for a fabulous tactile experience!

Halloween Sensory Play Another nature bin that includes one of my favorite elementsa sticky tree! Kids can explore the smaller elements of the bin, like rice, lentils, and beans, then add them to the sticky treeor not!

Leafy Jack-o-Lantern You can use colorful fall leaves as a sensory bin filler for any sensory activity for toddlers. Grab a marker and a sandwich bag and whip up a last-minute craft to boot!

Slippery Sledding Sensory Bin We always have extra shaving cream on hand for craft projects, so this sensory play was easy to createand super easy to clean up, too! Keeping that squishy goodness contained in a sensory box or sensory table keeps toddler and mama happy.

Christmas Sensory Bin The holidays are a wonderful excuse to introduce all sorts of themed activities! This simple Christmas sensory activity for toddlers is full of rich opportunities to promote learning and development. All you need is rice, some painters tape, and festive items to stick to your sticky tree!

I hope you found a sensory activity or two just right for you and yours.

Thank you so much for reading friends, I hope to see you back here soon!

P.S. Dont forget to grab your free visual playdough recipe!

Youll also love these How Wee Learn best-sellers:

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Simple And Fun Preschool Science Experiments And Activities

Introduce curious little minds to a world of discovery.

Every day is a new opportunity for toddlers to ask Why? over and over. Tap into that curiosity with these fun and engaging preschool science experiments and activities. Theyre all easy to set up and will help kids understand some basic science concepts. Have fun while you learn!

More Preschool Science Experiments

11. This weather activity combines a popular book and a classic experiment to introduce kids to tornadoes.12. Teach kids about animal habitats while Sorting Animals on a Venn Diagram . Its really easy to set up and even toddlers can participate.

13. This awesome Walking Water Science Experiment will wow kids all of ages!

14. Make a Rainbow Jar and introduce young children to density. Its really neat.

15. The kids will get a kick out of this super cool dancing raisins science experiment !

16. This Water Xylophone Science Experiment combines music and science. Its easy enough for your kids to make too.

17. Amaze your kids with Dancing Rice ! This baking soda and vinegar investigation is very intriguing.

18. These shaving cream clouds are so gorgeous! I cant wait to do this one!

19. Did you know that you can inflate a balloon with baking soda and vinegar ? You have to try this one!

20. My kids absolutely love this Solar System Scavenger Hunt ! Its a fun way to introduce preschoolers to the solar system and planets within it.

21. Your kids will love this super cool Lava Lamp Science Experiment .

22. Introduce preschoolers to the Zones of the Ocean with these engaging sensory bottles!

23. Make a pulley and teach kids about simple machines with this activity that will have kids moving and learning!

24. This Growing Plants Science Activity is a fantastic way to teach kids about plants! It even includes a observation sheet that is easy enough for preschoolers to use.

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3,000-year-old mummified bees are so well preserved, scientists can see the flowers the insects ate

The bees were preserved well enough for researchers to make out small features, like their legs and antennae.

Image taken under binocular lens, corresponding to specimen details of the dorsum. This specimen was extracted from the sediment filling a cocoon.

Thousands of years ago, a group of adolescent bees became trapped in cocoons inside their nest and left behind a remarkably preserved record of their "mummified" remains.

Researchers in Portugal reported the discovery of the ancient insects and fossilized bee nest — the first to be found with bees preserved inside it — in a study published July 27 in the journal Papers in Palaeontology .

"This new fossil site is a remarkable opportunity to better understand bee nesting behaviors and their evolution, because we can be face to face with the users of the nests," lead study author Carlos Neto de Carvalho , a paleontologist at the Naturtejo UNESCO Global Geopark in Portugal, told Live Science in an email.

Related: 41 million-year-old insect sex romp preserved in amber

The bees were found in rocks that formed about 3,000 years ago near the Atlantic coast of Portugal. The researchers had found fossils of "bulb-shaped" objects that they identified as traces of ancient cocoons. Because these kinds of burrows could have been dug by many kinds of bees or wasps, however, the researchers assumed they'd never know what created the objects, Neto de Carvalho said — that is, until they found some intact, sealed cocoons.

By scanning these samples, the team could see the remains of ancient bees hidden inside these cocoons, looking remarkably undeformed for having sat underground for thousands of years. The specimens are intact enough that researchers placed them in the tribe Eucerini, a group of bees that often have exceptionally long antennae. The specimens also contain evidence of pollen from a Brassicaceae plant, revealing what these bees might have been eating, Neto de Carvalho said.

These bees lay their eggs in in underground nests, where, over time, their spawn spin cocoons as they develop and grow into adult bees before emerging aboveground. But these individuals were killed before they reached that stage — and killed in a way that might have led to their exceptional preservation.

The researchers speculated that all of the bees died at once, potentially by a sudden freeze or by flooding and subsequent burial, Neto de Carvalho said. These conditions could have created a mini-environment around the bees without oxygen, which could have kept away the bacteria that would usually help break down insects' bodies after they die, the study authors proposed.

 — Where do honey bees come from? New study 'turns the standard picture on its head'

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Well-preserved prehistoric insects are often found in dried amber , when an animal gets caught and encased in sticky tree sap, Bryan Danforth , an entomologist at Cornell University who was not involved with the new research, told Live Science. But even in the rock layer, fossil evidence of insects dates all the way back to the "giant, dragonfly-like creatures" of the Paleozoic era, more than 250 million years ago, he added.

Scientists already knew that bees were living in Portugal 3,000 years ago, but, Danforth said, this study gives us insight into "the ability of fossils to recover aspects of bee behavior and bee life history."

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Ethan Freedman

Ethan Freedman is a science and nature journalist based in New York City, reporting on climate, ecology, the future and the built environment. He went to Tufts University, where he majored in biology and environmental studies, and has a master's degree in science journalism from New York University.

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She Was Depressed and Forgetful. It Was the Worm in Her Brain.

Doctors in Australia found a three-inch live parasitic worm in a woman’s brain during surgery after they spent more than a year trying to find the cause of her distress.

A thin red worm curls at the bottom of a specimen container that is tilted on its side and has a bright yellow lid.

By Amanda Holpuch

Doctors in Australia had screened, scanned and tested a woman to find out why she was sick after being hospitalized with abdominal pains and diarrhea. They were not prepared for what they found.

A three-inch red worm was living in the woman’s brain.

The worm was removed last year after doctors spent more than a year trying to find the cause of the woman’s distress.

The hunt for the answer, and the alarming discovery, was described this month in Emerging Infectious Diseases, a monthly journal published by the Centers for Disease Control and Prevention.

The woman, whom the article identifies as a 64-year-old resident of southeastern New South Wales, Australia, was admitted to a hospital in January 2021 after complaining of diarrhea and abdominal pain for three weeks. She had a dry cough and night sweats.

Scientists and doctors from Canberra, Sydney and Melbourne said in the journal article that the woman was initially told she had a rare lung infection, but the cause was unknown.

Her symptoms improved with treatment, but weeks later, she was hospitalized again, this time with a fever and cough. Doctors then treated her for a group of blood disorders known as hypereosinophilic syndrome, and the medicine they used suppressed her immune system.

Over a three-month period in 2022, she experienced forgetfulness and worsening depression. An MRI showed that she had a brain lesion and, in June 2022, doctors performed a biopsy.

Inside the lesion, doctors found a “stringlike structure” and removed it. The structure was a red, live parasitic worm, about 3.15 inches long and .04 inches in diameter.

They determined that it was an Ophidascaris robertsi, a type of roundworm that is native to Australia and reproduces in a large snake, the carpet python, which takes its name from its intricate markings . The pythons shed the worm’s eggs in their feces. The eggs are then ingested by small mammals, and the worms can grow inside them.

Roundworms infect hundreds of millions of people globally, according to the Cleveland Clinic , but the researchers in Australia said this was the first report of the Ophidascaris worm species infecting a human.

The woman may have been infected by the worm the same way small animals typically are: by accidentally consuming worm eggs.

Carpet pythons were at a lake area near where the woman lived, the article said. She had no direct contact with the snakes but often gathered warrigal greens, which are similar to spinach, from around the lake to cook. The article said that she could have inadvertently consumed worm eggs by eating the greens or because her hands or her kitchen were contaminated with them.

Scott Gardner, a professor of biological sciences and the curator of the Manter Laboratory of Parasitology at the University of Nebraska-Lincoln, said that people do not need to panic about being infected by an Ophidascaris from snakes and that they should use good hygiene to avoid being infected by parasites.

“A lot of the parasites that can affect people do so because we get in the wrong place at the wrong time,” Dr. Gardner, who was not involved with the Australia study, said in an interview. “So we ingest some eggs that aren’t supposed to come into us, and if we’re immunocompromised then we can have a pretty serious infection.”

Karina Kennedy, the director of microbiology at Canberra Hospital and an author of the article, said in a news release that the woman’s initial symptoms “were likely due to migration of roundworm larvae from the bowel and into other organs, such as the liver and the lungs.”

In the first stages of the woman’s illness, however, doctors were not able to find evidence of the parasite, Dr. Kennedy said.

“At that time, trying to identify the microscopic larvae, which had never previously been identified as causing human infection, was a bit like trying to find a needle in a haystack,” she said.

Six months after the brain surgery, the woman’s psychiatric symptoms remained, but had improved, the article said. She was also treated with medicine to kill worm larvae that may have been in her other organs. She is still being monitored by infectious disease and brain specialists.

Dr. Kennedy, who is also an associate professor at the Australian National University medical school, advised people to wash their hands after gardening and touching foraged products, and to thoroughly wash foods and surfaces used for cooking.

In the article, the scientists and doctors involved with the woman’s case said that her experience emphasized the risk of diseases spreading from animals to humans. Outbreaks of these kinds of diseases have become more frequent in recent decades and account for about 60 percent of all known infectious diseases and 75 percent of new and emerging ones, according to the C.D.C .

Though the type of worm that infected the woman is endemic to Australia, the Ophidascaris species infects snakes in other parts of the world. Scientists said in the article that this case showed “that additional human cases may emerge globally.”

Amanda Holpuch is a general assignment reporter. More about Amanda Holpuch

CNN values your feedback

Archaeologists find 3,000-year-old priest’s tomb in peru.

The priest was buried under six layers of ash mixed with black earth, according to Peru's Culture Ministry.

Archaeologists in northern Peru have unearthed a 3,000-year-old tomb which they believe might have honored an elite religious leader in the Andean country some three millennia ago.

Dubbed the “Priest of Pacopampa,” referring to the highland archaeological zone where the tomb was found, the priest was buried under six layers of ash mixed with black earth, with decorated ceramic bowls and seals indicating ancient ritual body paint used for people of elite standing, Peru’s culture ministry said in a statement on Saturday.

Two seals were also found along the upper edges of the tomb, one with an anthropomorphic face looking east and another with a jaguar design facing west.

science projects 3 year olds

Project leader Yuji Seki said the large size of the tomb, nearly two meters (2.2 yards) in diameter and one meter (3.3 feet) deep, was “very peculiar,” as was the position of the body lying face down with one half of his body extended and feet crossed.

The body was also found with a bone shaped into a tupu, a large pin used by Andean Amerindians to hold cloaks and ponchos, which would have been used to hold a woman’s blanket, he added.

“Though this person is a man, the associations are very peculiar,” said Seki. “I think this was a leader in his time.”

Archaeologists uncover new insight into the lives of slaves in ancient Pompeii

The Pacopampa Archaeological Project has been working in the area since 2005, the ministry said, adding that rock layers indicate the priest, who would have been buried around 1,200 B.C., was some five centuries older than the tombs of the “Lady of Pacopampa” and the “Priests of the Serpent Jaguar of Pacopampa,” discovered in 2009 and 2015 respectively.

Last year’s find of the “Priest of the Pututos,” however, is believed to be older.


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  1. 30 Science Activities for Toddlers

    Two to three year olds will enjoy these easy science experiments that don't require much prep, planning, or supplies. The simpler you keep it, the more fun your little scientist will have exploring! For more easy science projects for younger kiddos, check out… Toddler STEM Activities Preschool Science Experiments WHAT IS SCIENCE FOR TWO YEAR OLDS?

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  4. 3-4 Year Olds

    Fun Science and STEM Activities for 3-4 year olds Can you dissolve the eggshell of a raw egg? Read More... Colour Changing Flowers Experiment Read More... Fireworks in Oil & Water | Density science project for kids Read More... Delightfully Fizzy Sherbet Read More... Glowing Ice Cubes | edible, sensory, science, play Read More... C is for Catapult!

  5. 10+ Simple Science Experiments for 3-4 Year Olds

    1. Oil and water don't mix, but what happens when you add this special ingredient? From Play Trains. 2. Test your kids hypothesis on what would happen if they stepped on raw eggs . They will love this one! From Housing A Forest. 3. You can blow up a balloon with a combination of soda and candy. So cool! From Learn Play Imagine. 4.

  6. 10 Toddler Science Activities that Are Full of Fun

    Magic Milk Science Experiment: Perfect for little ones who have not yet experienced chemical reactions. (Laughing Kids Learn) Bubble Snake: Toddlers are learning how to blow bubbles, and they will love this easy DIY bubble snake activity! (One Little Project) Color Surprise Eruptions: Add simple color recognition to this fun science activity.

  7. 10 Simple Science Experiments for 3-5 Year Olds

    Here are a bunch of fun science ideas suitable for 3-5 year olds. Test your kids hypothesis on what would happen if they stepped on raw eggs . They will love this one! From Housing A Forest. Explore how plants "drink" with this experiment showing water moving through a leaf . From Buggy and Buddy.

  8. 50 Fun Kids Science Experiments

    Safety first: Always prioritize safety. Use kid-friendly materials, supervise the experiments, and handle potentially hazardous substances yourself. Start with simple experiments: Begin with basic experiments (find tons below) that require minimal setup and materials, gradually increasing complexity as kids gain confidence.

  9. Science Activities for 3- to 5-Year-Olds

    Science is a hands-on based activity for 3- to 5-year-olds. Preschoolers aren't ready to sit down and memorize concepts. Encourage activities that promote a basic understanding of the world around them with activities that teach the basics in an enjoyable way. They will think they are playing when actually they are learning. Plants

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  11. 50 Easy Preschool Science Experiments

    By Sarah McClelland Updated on August 7, 2023 Curious kids turn into junior scientists with these fun and easy preschool science experiments. This collection of preschool science activities are totally do-able and use simple supplies for home or in the classroom. FUN SCIENCE ACTIVITIES FOR PRESCHOOLERS SCIENCE PROJECTS FOR PRESCHOOLERS

  12. Preschool STEM Activities

    These easy and fun STEM activities for preschoolers are fast to put together and packed with learning. The target age for these science experiments is 3 years old to 4 years old, but that doesn't mean they are limited to these ages. Younger and older children will enjoy them too!

  13. 20 Science Activities for Toddlers and Preschoolers

    20 Terrific science activities for toddlers and preschoolers. Great for home, daycare, the classroom or even for kids' parties! Simple enough for toddlers and preschoolers, but fascinating enough for kids of all ages!

  14. 37 Cool Science Experiments for Kids to Do at Home

    By doing these easy science experiments, kids will make their own blubber and see how polar bears stay warm, make a rain cloud in a jar to observe how weather changes, create a potato battery that'll really power a lightbulb, and more. Below are 37 of the best science projects for kids to try.

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    STEM Activities for Kids (481 results) Anytime can be the right time to explore STEM (science, technology, engineering and math). Explore our favorite experiments, engineering challenges and demonstrations with these fun hands-on STEM activities! Materials are easy to find, most activities take an hour or less, and the STEM learning is limitless.

  16. 30 Simple and Fun Preschool Science Experiments and Activities

    1. Try this "The Floor Is Lava" STEM challenge While you might not want pre-K kids climbing all over the classroom furniture to play "The Floor Is Lava," they can do the same thing with their toys in this cute STEM challenge! Learn more: Forward With Fun 2. Surround kids with an oversized bubble

  17. 45 Easy Science Experiments for Kids

    45 Easy Science Experiments for Kids Hello, STEM! These simple DIY activities can be done at home or in school. By Marisa LaScala Updated: Jan 24, 2023 Save Article ALICE AND LOIS Imagine...

  18. Science Experiments for Kids:

    Science Experiments for Kids: Science experiments you can do at home! Explore an ever growing list of hundreds of fun and easy science experiments. Have fun trying these experiments at home or use them for science fair project ideas.

  19. Science Experiments for 2 and 3 Year Olds

    Why Science Experiments are Important for 2 and 3 Year Olds. With the most basic introduction to things like capillary action, density, chemical reactions, magnetics and so much more, your kids will have a ton of fun without even realizing everything that they are learning about! Making science enjoyable at such a young age will help reinforce ...

  20. 50+ Science Experiments for 1-2 Year Olds (Toddlers)

    Be assured, these are golden period for any kid as 80% of brain development happens below 3 years of growth. This is the right age to introduce science. Yes, I am not joking and I have done it with my two daughters. We have collected several experiments suitable for kids of age 1 and 2.

  21. 70 Easy Science Experiments Using Materials You Already Have

    1. Amplify a smartphone No Bluetooth speaker? No problem! Put together your own from paper cups and toilet paper tubes. Learn more: Mum in the Madhouse 2. Send a teabag flying Hot air rises, and this experiment can prove it! You'll want to supervise kids with fire, of course. For more safety, try this one outside!

  22. Science Sensory Activities For 3 5 Year Olds

    13. Fizzy Cloud Dough from Powerful Mothering: This recipe to make fizzy cloud dough is the perfect dual function sensory play and science experiment! 14. I Spy Sensory Play from You Clever Monkey: Check out this I spy activity, perfect for both sensory play and learning, with free printable I spy cards! 15.

  23. Third Grade Science Projects

    Do an experiment to find out! Watch the video above to learn how to make a simple homemade fly trap using a plastic bottle. Then, experiment to discover which bait attracts the most flies. You can try a variety of liquids, and you can also use solid bait like rotting food or meat, but you will need to add some water so the flies drown.

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  26. 3,000-year-old mummified bees are so well preserved ...

    But even in the rock layer, fossil evidence of insects dates all the way back to the "giant, dragonfly-like creatures" of the Paleozoic era, more than 250 million years ago, he added.

  27. Live 3-Inch Parasitic Worm Is Found in a Woman's Brain During Surgery

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  28. Archaeologists find 3,000-year-old priest's tomb in Peru

    Project leader Yuji Seki said the large size of the tomb, nearly two meters (2.2 yards) in diameter and one meter (3.3 feet) deep, was "very peculiar," as was the position of the body lying ...