8th Grade Science Worksheets and Study Guides

The big ideas in Eighth Grade Science include exploring the life, earth, and physical sciences within the framework of the following topics: “Earth’s Biological History” (Earth’s biological diversity over time); “Earth’s Structure and Processes” (materials and processes that alter the structure of Earth); “Astronomy: Earth and Space Systems” (characteristics, structure, and motions of celestial bodies in the universe); “Forces and Motion” (effects of forces on the motion of an object); and “Waves” (properties and behaviors of waves).

Science Worksheets and Study Guides Eighth Grade

Earth science: astronomy, our solar system, stars, galaxies and the universe, earth science: earth's waters, the movement of ocean water, earth science: exploring planet earth, earthquakes, geologic time, plate tectonics, earth science: weather & climate, understanding weather, bones, muscles, and skin, circulation and immunity, respiration and excretion, the digestive system & nutrition, the endocrine system and reproduction, the nervous system, life science: diversity of life, the evolution and interaction of living things, life science: genetics & heredity, modern genetics, physical science: energy, heat and heat technology, the energy of waves, physical science: forces and motion, forces in fluids, physical science: light & sound, mirrors and lenses, physical science: matter and its interactions, chemical bonding, chemical reactions, organic compounds, physical science: technology, introduction to physical science, physical science: the atom, properties of atoms, newpath learning resources are fully aligned to us education standards. select a standard below to view aligned activities for your selected subject and grade:.

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Free 8th grade biology worksheets

Preview of Crash Course Biology - Complete Series, Bundle | Digital & Printable

Crash Course Biology - Complete Series, Bundle | Digital & Printable

grade 8 biology worksheet

Counting Atoms in Chemical Formulas Self-Guided Learning Digital Interactive

grade 8 biology worksheet

Science Throughout the YEAR Bundle Grades 3-5⭐Activities, Interactive Notebooks

grade 8 biology worksheet

Science Warmups Throughout the Year| Bell Ringers |Daily Homework| Morning Work

Preview of !!!!⭐NO PREP 8th Grade Math Escape Room Mega Bundle⭐Distance Learning

!!!!⭐NO PREP 8th Grade Math Escape Room Mega Bundle⭐Distance Learning

grade 8 biology worksheet

8th Grade MID-WINTER / February MATH PACKET {Review/Assessments of Standards}

grade 8 biology worksheet

#1 Science Curriculum Bundle | Physical, Earth, Space & Biology Life Science

grade 8 biology worksheet

Reading Comprehension Passages and Questions Morning Work Test Prep Digital

grade 8 biology worksheet

Ecology Vocabulary - Differentiated Science Reading Passages & Questions

grade 8 biology worksheet

  • Google Apps™

Preview of FREE Genetics Punnett Square Practice

FREE Genetics Punnett Square Practice

grade 8 biology worksheet

Flobbit Punnett Square Practice Genetics and Heredity

grade 8 biology worksheet

Digestive System Introduction & Coloring Activity

grade 8 biology worksheet

Science Unit Vocabulary Worksheet Science Substitute Plan

Preview of Food Webs and Food Chains Worksheet

Food Webs and Food Chains Worksheet

grade 8 biology worksheet

The Water Cycle - Worksheet | Easel Activity & Printable PDF

grade 8 biology worksheet

  • Easel Activity

Preview of Scientific Method Worksheet (answer key included)

Scientific Method Worksheet (answer key included)

grade 8 biology worksheet

  • Word Document File

Preview of Free Animal and Plant Cell Labelling Doodle Notes | Coloring Worksheets |

Free Animal and Plant Cell Labelling Doodle Notes | Coloring Worksheets |

grade 8 biology worksheet

Science of the Flu Shot / Vaccines: Science Article #51 - (Google Slides & PDFs)

grade 8 biology worksheet

FREE Printable Periodic Table: Legal Size and 2 page Landscape Size

grade 8 biology worksheet

Science Article #52 - Concussions in Sports - Sub Plan (Google Slides & PDFs)

Preview of Cell Cycle & Mitosis Notes and Microscope Lab

Cell Cycle & Mitosis Notes and Microscope Lab

grade 8 biology worksheet

Abiotic and Biotic Factors

grade 8 biology worksheet

Let's Build: A Plant Cell

grade 8 biology worksheet

What is Science Cubing Activity - Distance Learning

Preview of Dichotomous Key Minion Notes & Practice

Dichotomous Key Minion Notes & Practice

grade 8 biology worksheet

Pedigree Worksheet Genetics and Heredity

Preview of Human Respiratory System ACTIVITY Worksheet - FREE (Science, Biology)

Human Respiratory System ACTIVITY Worksheet - FREE (Science, Biology)

grade 8 biology worksheet

FREE Simple Punnett Square Practice Problems Biology Genetics

grade 8 biology worksheet

Photosynthesis and Cellular Respiration Activity Cell Energy Sorting Worksheet

grade 8 biology worksheet

Building Macromolecule Models Paper Lab Activity, Notes, & Review Questions

grade 8 biology worksheet

Punnett Squares Coloring Worksheet - Mendelian FREE

grade 8 biology worksheet

Cellular Respiration (Grade 6-8)

Cellular Respiration Text, Diagrams, Assessments,  and Link to Standards

Focus Questions

1) What is cellular respiration?

2) How is cellular respiration connected to breathing?

3) If you are an athlete that exercises extensively, what organelles might you expect to see more of in your cells?

4) How does eating food give our cells energy?

When we eat and digest food, it is broken down into smaller and smaller units until it becomes small enough to be used in our cells as glucose molecules . At the same time, we are breathing in oxygen that travels from our lungs through our bloodstream into smaller and smaller blood vessels until it reaches our cells. When the glucose and oxygen reach our cells, we have the materials we need to perform cellular respiration . This process starts in the cells’ cytoplasm and is completed in the mitochondria - the cellular powerhouse. In those tiny organelles, one molecule of glucose with 6 molecules of oxygen are changed into 36 molecules of ATP – the energy cells can use to get things done.

Cellular respiration is going on in every cell in both animals and plants. In Animals:

1) Eat a sandwich and start digesting  → 

2) bread breaks down into carbohydrate molecules  →

3) carbohydrate molecules break down into glucose molecules  → 

4) glucose molecules (plus oxygen from breathing) are converted in the cells to energy (ATP).

Cellular respiration (a three stage process) converts glucose and oxygen to ATP (the cellular form of  energy) and releases carbon dioxide and water. This is cellular respiration.

The exact formula is:

C6H12O6 (1 glucose molecule)  +  6 O2      →     6 CO2     +    6 H2O   +    36 ATP (ENERGY)

                   carbohydrate        +        oxygen   →   carbon dioxide    +    water        +   ATP energy

Note that: 1 molecule of glucose plus 6 molecules of oxygen are changed into about 36 molecules of ATP (energy) plus 6 molecules of water and 6 molecules of carbon dioxide during cellular respiration.

1) photosynthesis creates glucose molecules (instead of eating)  → 

2) this fuels cellular respiration in the plant cells  → 

3) creates ATP  → 

4) fuels plant growth and reproduction → 

5) provides carbohydrates to animals for their cellular respiration. The cycle continues.

The formula in plants is:

  6 CO2     +      6 H2O    + Light Energy     →     C6H12O6 (glucose)  +  6 O2

For what do we use ATP? ATP is the energy that cells use to do their work. This, in turn, helps the body run smoothly and do its work like: breathe, circulate blood, digest, respond to stimuli, create new cells, repair and grow, move our muscles, etc. Everything you do uses energy.

Cellular Respiration

More About Cellular Respiration

So now we know that cellular respiration is a three stage process that converts glucose and oxygen to ATP and releases carbon dioxide and water. What are the 3 phases that do this?             1) Glycolysis             2) Krebs Cycle             3) The Electron Transport Chain (ETC)

This is a very simple overview of these 3 stages:

Glycolysis (Stage 1)

Glycolysis is the process where 1 glucose molecule in the cell’s cytoplasm is broken down (through several steps) into 2 molecules of pyruvate, which is then used in the Kreb’s Cycle (stage 2). This break down also releases 2 ATP + 2 H2O + 2 NADH molecules. Krebs Cycle (Stage 2)

To start the Krebs Cycle, pyruvate is pulled into the cell’s mitochondria and converted to Acetyl-CoA. The Acetyl-CoA molecule is then converted (through several steps and two complete turns of the Kreb’s Cycle) into 4 CO2 molecules, 6 NADH molecules, 2 ATP molecules and 2 FADH2 molecules. The Electron Transport Chain (ETC) (Stage 3)

The final stage – the Electron Transport Chain (ETC) is found in the mitochondria (in animals) and in the chloroplasts (in plants) and releases 32-34 ATP molecules when the electron transport chain produces a concentration gradient through which hydrogen moves across the membrane releasing energy as ATP (produced via the proton motive force). Fermentation

As we saw, cellular respiration needs oxygen to progress. What happens if there is no oxygen where an organism lives (anaerobic conditions)? In that case, the organism can still create energy, but through the process of fermentation. Fermentation happens in the cells’ cytoplasm (not in the mitochondria) and helps generate only 2 ATP molecules per glucose molecule (much less effective in generating energy than cellular respiration). Fermentation uses the pyruvate molecules made by glycolysis from glucose.

The formula is:  C6H12O6 (glucose)  →   CO2   +   2 C2H5OH  (alcohol) and some energy In the making of wine and beer (alcohol), yeast cells generate ATP by the fermentation of the sugars in fruit and grain (in the absence of oxygen). Yeast can also release carbon dioxide in this process, which is what causes bread to rise. In animals, the lack of oxygen will drive muscle cells to carry on lactate fermentation which creates lactic acid causing sore and cramping muscles. This happens when you get so much exercise (say on a very long hike or run) so that your body runs low on oxygen for cellular respiration. Understanding Cellular Respiration

Here are three visual depictions of cellular respiration – an equation, an output description and an illustration.

1) Equation :

    C6H12O6 (1 glucose molecule) + 6 O2 = 6 CO2 + 6 H2O + 36 ATP (ENERGY)

            carbohydrate     +       oxygen   =   carbon dioxide   +  water   +   ATP energy 2) Description of the molecules: created in all three stages of cellular respiration:

1 glucose  →     Glycolysis      →     Acetyl-CoA      →      Krebs Cycle                           2 pyruvate             2 Acetyl-CoA               4 CO2                           2 ATP                    2 CO2                          2 ATP                               2NADH                 2NADH                        6NADH                                                                                            2FADH2 3) Illustrations and Assessments : Study the following Diagrams (Cellular Respiration Models):

Cellular Respiration

Try this Understand by Design (UbD) Assessment -   Cellular Respiration - Authentic Performance Activity ( below)

and other Assessments below. (For higher resolution printing use PDF at bottom.)

Cellular Respiration

High Resolution PDF of Content for Printing

Use teacher login to show answer keys or other teacher-only items., citing research references.

When you research information you must cite the reference. Citing for websites is different from citing from books, magazines and periodicals. The style of citing shown here is from the MLA Style Citations (Modern Language Association).

When citing a WEBSITE the general format is as follows. Author Last Name, First Name(s). "Title: Subtitle of Part of Web Page, if appropriate." Title: Subtitle: Section of Page if appropriate. Sponsoring/Publishing Agency, If Given. Additional significant descriptive information. Date of Electronic Publication or other Date, such as Last Updated. Day Month Year of access < URL >.

Here is an example of citing this page:

Amsel, Sheri. "Cellular Respiration (Grade 6-8)" Exploring Nature Educational Resource ©2005-2024. February 27, 2024 < http://www.exploringnature.org/db/view/Cellular-Respiration >

Exploringnature.org has more than 2,000 illustrated animals. Read about them, color them, label them, learn to draw them.

Exploringnature.org has more than 2,000 illustrated animals. Read about them, color them, label them, learn to draw them.

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grade-8-cell-structure-and-functions-worksheets

Grade 8 Cell Structure and Functions Worksheets

A. State True or False:

1. Unicellular organisms have one-celled body. ……………… 2. Muscle cells are branched. ……………….. 3. The basic living unit of an organism is an organ. ………………. 4. Amoeba has irregular shape. …………………… 5. Most of the cells have nucleus. …………………

B. Answer the following questions in short:

CBSE Class 8 Science Cell Structure and Functions Worksheets 1

C. Tick (✓) the correct option:

1. The cell wall is made of a non-living material known as: (a) chromosome (b) nucleic acid (c) cellulose (d) protoplasm

2. Food-making structures found in the cells of green plants are called: (a) chloroplasts (b) chromosomes (c) mitochondria (d) chromoplasts

3. Cells which are long and branched are: (a) muscle cells (b) nerve cells (c) red blood cells (d) ostrich egg cells

4. The largest known cell is: (a) ostrich egg (b) RBC (c) WBC (d) skin cell

D. Fill in the blanks:

1. The ……………. is the control centre of the cell. 2. An ……………. is a cell that can be seen without a microscope. 3. Energy is produced in ………………… . 4. Cell wall is found in ………………… cell.

E. Match the following:

F. Compare the plant cell and animal cell, then complete the table:

CBSE Class 8 Science Cell Structure and Functions Worksheets 3

G. Complete the crossword with the help of clues given below:

Across (→) 1. This is necessary for photosynthesis. 3. Term for component present in the cytoplasm. 6. The living substance in the cell. 8. Units of inheritance present on the chromosomes.

CBSE Class 8 Science Cell Structure and Functions Worksheets 4

Worksheets for Class 8 Science

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Biology Worksheets, Notes, and Quizzes (PDF and PNG)

Biology Notes, Worksheets, and Quizzes

This is a collection of free biology worksheets, notes, handouts, slides, study guides and quizzes. Most content targets high school, AP biology, genetics, anatomy/physiology, immunology, and biology 101 and 102 in college. There is also biochemistry and physics for biologists. However, some resources are at the grade school and middle school level.

The files are PDF, PNG, JPG, and formats using Google Apps for Google Classroom. Most of the time, these formats are interchangeable. So, if you see something you like, but want a different format, just let us know. Print these resources, make transparencies and slides, etc.

In the interest of quick load time, not all of the images are shown. If you’d rather see them all, just contact us!

Biochemistry

Understanding the Differences Between RNA and DNA - Worksheet

[ Google apps worksheet ][ worksheet PDF ][ answers PDF ][ worksheet PNG ][ answers PNG ]

Enzymes Worksheet

Enzymes Definitions

[ Google Slides worksheet ][ worksheet PDF ][ answers PDF ][ worksheet PNG ][ answers PNG ]

  • 20 Amino Acids [ PNG ][ PDF ]
  • Amino Acid Side Chains [ PNG ][ PDF ]
  • Identifying Type of Biological Macromolecules [ Google Slides worksheet ][ worksheet PDF ][ answers PDF ][ worksheet PNG ][ answers PNG ]
  • Disaccharide Examples [ PNG ]
  • Products of Photosynthesis [ JPG ]
  • Anabolism vs Catabolism [ PNG ]
  • 3 Parts of a Nucleotide [ PNG ]
  • Fermentation Definition and Examples [ PNG ]

General and Cell Biology

Major Organelles and Their Function Worksheet

Organelles and Their Functions

Parts of a Plant Cell Worksheet

Parts of a Plant Cell

Anatomy of a Chloroplast Worksheet

Label Parts of a Chloroplast

[ Google Apps worksheet ][ worksheet PDF ][ answers PDF ][ worksheet PNG ][ answers PNG ]

Anatomy of the Mitochondria Worksheet

Label Parts of a Mitochondria

Animal Cell Worksheet

Label the Animal Cell

[ Google Apps worksheet ][ worksheet PDF ][ worksheet PNG ][ answers PNG ]

Prokaryotes vs Eukaryotes Worksheet

Prokaryotes vs Eukaryotes Worksheet

Stages of the Cell Cycle Worksheet

Steps of the Cell Cycle

Stages of Mitosis Worksheet

Steps of Mitosis

Membrane Transport Worksheet

Membrane Transport Terms and Definitions

Membrane Transport Worksheet 2

Membrane Transport Worksheet #2

The Plasma Membrane Worksheet

The Plasma Membrane

Bacterial Cell Anatomy Worksheet

Label a Bacterial Cell

  • Label a Bacteriophage [ Google Apps worksheet ][ worksheet PDF ][ worksheet PNG ][ answers PNG ]
  • Evidence of Evolution Worksheet [ Google Apps worksheet ][ Worksheet PDF ][ Worksheet PNG ][ Answers PNG ]
  • Evolutionary Processes Worksheet [ worksheet Google Apps ][ worksheet PDF ][ worksheet PNG ][ answers PNG ]
  • Major Receptor Families [ Google Apps worksheet ][ worksheet PDF ][ worksheet PNG ][ answers PNG ]
  • Label a Bacterial Cell Membrane ( E. coli ) [ Google Apps worksheet ][ worksheet PDF ][ worksheet PNG ][ answers PNG ]

Anatomy and Physiology

These worksheets are only a portion of the available anatomy and physiology worksheets. Human anatomy and physiology worksheets have their own section.

Anatomy of the Heart Worksheet

Label the Heart

Anatomy of the Eye Worksheet

Label the Eye

[ Google Apps worksheet ][ worksheet PDF ][ answers PDF ][ worksheet PNG ]

Types of Blood Cells Worksheet

Types of Blood Cells

[ worksheet Google Apps ][ worksheet PDF ][ worksheet PNG ][ answers PNG ]

The Main Anterior Muscles Worksheet

Label the Muscles

[ worksheet PDF ][ worksheet PNG ][ answers PNG ]

Anatomy of the ear worksheet

Label the Ear

[ Google Apps worksheet ][ Worksheet PDF ][ Worksheet PNG ][ Answers PNG ]

Anatomy of the Lungs Worksheet

Label the Lungs

Anatomy of a Kidney Worksheet

Label the Kidney

Anatomy of the Liver Worksheet

Label the Liver

Anatomy of the Large Intestine Worksheet

Label the Large Intestine

Anatomy of the Stomach Worksheet

Label the Stomach

[ Google Apps worksheet ] [Worksheet PDF ][ Worksheet PNG ][ Answers PNG ]

External Nose Anatomy Worksheet

External Nose Anatomy

[ Worksheet PDF ][ Worksheet Google Apps ][ Worksheet PNG ][ Answers PNG ]

Anatomy of the Nose Worksheet

Parts of the Nose

The Skeletal System Worksheet

Label Bones of the Skeleton

Anatomy of a Lymph Node - Worksheet

Label the Lymph Node

Anatomy of of the Brain Worksheet

Label the Parts of the Brain

Lobes of the Brain Worksheet

Label the Lobes of the Brain

Anatomical Directions of the Brain Worksheet

Brain Anatomical Sections

Arteries of the Brain Worksheet

Arteries of the Brain

Anatomy of the Pancreas Worksheet

Label the Pancreas

Anatomy of the Spleen Worksheet

Label the Spleen

The Digestive System Worksheet

Label the Digestive System

The Respiratory System Worksheet

Label the Respiratory System

Anatomy of a Neuron Worksheet

Parts of a Neuron

Lip Anatomy Worksheet

Label the Lips

Anatomy of the Skin Worksheet

Label the Skin

The Circulatory System Worksheet

Label the Circulatory System

The Excretory System Worksheet

The Urinary Tract

[ Worksheet PDF ][ Worksheet Google Apps ][ Worksheet PNG ][ Answer Key PNG ]

Anatomy of the Bladder Worksheet

The Bladder

  • The Female Reproductive System [ worksheet PDF ][ worksheet Google Apps ][ worksheet PNG ][ answers PNG ]

Parts of a Flower Worksheet

Parts of a Flower

Anatomy of an orchid Worksheet

Label the Orchid Plant

[ Worksheet PDF ][ Worksheet Google Apps ][ Worksheet PNG ] [Answer Key PNG ]

Parts of an orchid flower Worksheet

Parts of an Orchid Flower

Parts of a monocot seed Worksheet

Parts of a Monocot Seed

Parts of a fern Worksheet

Parts of a Fern

Parts of a tree trunk Worksheet

Parts of a Tree Trunk

Parts of a Tree Worksheet

Parts of a Tree

[ worksheet PDF ][ worksheet Google Apps ][ worksheet PNG ][ answers PNG ]

Basic Anatomy of a Mushroom Worksheet

Parts of a Mushroom

Parts of a Shark Worksheet

Label the Shark

Anatomy of a Fish Worksheet

Label the Fish

Parts of a Bird Worksheet

Parts of a Bird

Basic Anatomy of a Bird Worksheet

Bird Anatomy

Life Cycle of a Frog Worksheet

Frog Life Cycle

Basic Mosquito Anatomy Worksheet

Parts of a Mosquito (Insect)

grade 8 biology worksheet

Bones of the T. rex Skull

[ worksheets PDF ][ worksheet Google Slides ][ worksheet PNG ][ answers PNG ]

grade 8 biology worksheet

Holes of the T. rex Skull

  • Label the T. rex Skeleton [ worksheets PDF ][ worksheet Google Slides ][ worksheet PNG ][ answers PNG ]
  • Label Human Teeth [ Worksheet PDF ][ Worksheet Google Apps ][ Worksheet PNG ][ Answer Key PNG ]
  • Monocot vs Dicot Seeds [ worksheet PDF ][ worksheet Google Slides ][ worksheet PNG ][ answers PNG ]
  • Label the Moss [ worksheet PDF ][ worksheet Google Slides ][ worksheet PNG ][ answers PNG ]
  • Diagram of the Human Eye [ JPG ]

Use a completed worksheet as a study guide.

Cells of the Immune System Worksheet

Cells of the Immune System

Immune Cell Functions - Worksheet 1

Immune Cell Functions

[ worksheet Google Apps ][ worksheet PDF ][ worksheet PNG #1][ answers PNG #1][ worksheet PNG #2][ answers PNG #2]

Methods to Study Virus Structures Worksheet

Methods to Study Virus Structures

[ worksheet Google Slide ][ worksheet PDF ][ worksheet PNG ][ answers PNG ]

Icosahedral Virus Capsids Worksheet

Icosahedral Virus Capsids

Human DNA Viruses Worksheet

Human DNA Viruses

Human RNA Viruses Worksheet

Human RNA Viruses

This is selection of worksheets relating to DNA, RNA, transcription, translation, genetic crosses, plasmid mapping, etc. See the full collection of genetics worksheets if you’re don’t see what you need.

DNA Replication Worksheet

DNA Replication

Types of Mutations Worksheet

Types of Mutations

Monohybrid Cross - Worksheet #1

Monohybrid Cross Worksheet #1

Monohybrid Cross - Worksheet #2

Monohybrid Cross Worksheet #2

Monohybrid Cross - Worksheet #3

Monohybrid Cross Worksheet #3

Monohybrid Cross 4 Multiple Alleles - Worksheet

Monohybrid Cross #4 – Multiple Alleles

  • Monohybrid Cross Worksheet #5: Multiple Alleles [ worksheet Google Apps ][ worksheet PDF ][ worksheet PNG ][ answers PNG ]

Monohybrid Cross 6 Sex-Linked Inheritance Worksheet

Monohybrid Cross #6 – Sex-Linked Inheritance

Sex-Linked Inheritance Worksheet

Monohybrid Cross #7 – Sex-Linked Inheritance

Dihybrid Cross - Worksheet #1

Dihybrid Cross Worksheet #1

Dihybrid Cross 2 - Worksheet (8.5 × 11 in)

Dihybrid Cross Worksheet #2

Dihybrid Cross 3 - Student (8.5 × 11 in)

Dihybrid Cross Worksheet #3

Dihybrid Cross 4 - Student (8.5 × 11 in)

Dihybrid Cross Worksheet #4

Dihybrid Cross 5 Epistasis Worksheet

Dihybrid Cross #5 – Epistasis

Dihybrid Cross 6 Epistasis Worksheet

Dihybrid Cross #6 – Epistasis

Incomplete Dominance - Worksheet #1

Incomplete Dominance Worksheet #1

Incomplete Dominance - Worksheet #2

Incomplete Dominance Worksheet #2

Natural Selection Worksheet

Natural Selection Worksheet

Convergent vs. Divergent Evolution Worksheet

Convergent vs Divergent Evolution Worksheet

Pedigree Worksheet 1 Worksheet

Intro to Pedigrees Worksheet #1

Pedigree Worksheet 2 (Student)

Pedigrees/Genealogy Worksheet #2

Pedigree Worksheet 3 (Student)

Pedigrees/Genealogy Worksheet #3 – X-Linked Dominant Traits

Pedigree Worksheet 4 X-Linked Recessive Traits (Student)

Pedigrees/Genealogy Worksheet #4 – X-Linked Recessive Traits

Pedigree Worksheet 5 Autosomal Dominant Traits (Student)

Pedigrees/Genealogy Worksheet #5 – Autosomal Dominant Traits

grade 8 biology worksheet

Pedigrees/Genealogy Worksheet #6 – Autosomal Recessive Traits

Pedigree Worksheet 7 (Student)

Pedigrees/Genealogy Worksheet #7 – Comprehension Skills

Pedigree Worksheet 8 Worksheet

Pedigrees/Genealogy Worksheet #8 – Identifying Inheritance Patterns

Autosomal vs Sex-Linked Inheritance Worksheet

Autosomal vs Sex-Linked Inheritance

Plasmid Mapping Worksheet 1 (Student)

Plasmid Mapping

  • Genotype vs Phenotype [ PNG ]
  • Genetic Codon Chart [ PNG ][ PDF ]
  • RNA vs DNA [ JPG ]

Use labelled diagrams as study guides.

Ecosystem Worksheet 1

Ecosystems Worksheet

Levels of organization in ecology Worksheet

Levels of Organization (Ecosystem)

Levels of Primary Succession Worksheet

Primary Succession

Levels of Secondary Succession Worksheet

Secondary Succession

Parts of the Insect Worksheet

Label the Insect

Anatomy of a Bee Worksheet

Label the Bee

Life Cycle of a Chicken Worksheet

Chicken Life Cycle (Basic)

Life Cycle of a Bird Worksheet

Bird Life Cycle (Basic)

Frog Life Cycle Worksheet

Butterfly Life Cycle

  • Biotic and Abiotic Factors [ worksheet PDF ][ worksheet Google Apps ][ worksheet PNG ][ answers PNG ]
  • Kingdoms of Life Graphic [ PNG ]
  • Autotroph vs Heterotroph Graphic [ PNG ]
  • Commensalism Definition and Examples [ PNG ]
  • Difference Between Butterflies and Moths [ JPG ]
  • Difference Between Bugs and Insects [ PNG ]

Parasitology

Schistosome Life Cycle Worksheet

Schistosome Life Cycle

Adult Schistosome Worksheet

Schistosome Anatomy

  • Giardia Life Cycle [ worksheet Google Apps ][ worksheet PDF ][ worksheet PNG ][ answers PNG ]

Physical Science for Biology

There is also an entire section devoted to physical science worksheets and study guides.

  • Adhesion vs Cohesion Graphic [ PNG ]
  • What Is Entropy? [ PNG ]
  • Freezing Point of Water [ PNG ]

Biology Labs

  • How to Extract DNA From a Banana [ PNG ]

Biology Word Search Puzzles

  • DNA Replication Word Search
  • Gel Electrophoresis Word Search
  • Citrus Fruits
  • General Biology Word Search Puzzle [ PNG ]
  • Life Science Word Search [ PNG ][ PDF ]
  • Cell Biology Word Search [ PNG ][ PDF ]
  • Amino Acid Word Search [ PNG ][ PDF ]
  • Biome Word Search [ PNG ][ PDF ]
  • Environmental Science Word Search [ PNG ][ PDF ]
  • Photosynthesis Word Search [ PNG ]
  • Human Skeleton Bones Word Search [ PNG ]
  • Dinosaur Word Search [ PNG ][ PDF ]
  • Different Dinosaur Word Search [ PNG ][ PDF ]
  • Wild Cats Word Search [ PNG ][ PDF ]
  • Shark Word Search [ PNG ]
  • Trees Word Search [ PNG ][ PDF ]
  • Flowers Word Search [ PNG ][ PDF ]
  • Butterfly Word Search [ PNG ][ PDF ]
  • Genetics Word Search [ PNG ][ PDF ]

Miscellaneous Biology Notes and Resouces

  • How Long Can Germs Live on Surfaces? [ PNG ]
  • 10 Radioactive Foods [ PNG ]
  • Examples of Organic Compounds [ PNG ]

Biology Notes Terms of Use

You are welcome to print these resources for personal or classroom use. They may be used as handouts or posters. They may  not  be posted elsewhere online, sold, or used on products for sale.

This page doesn’t include all of the assets on the Science Notes site. If there’s a table or worksheet you need but don’t see, just let us know.

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Biology Grade 8

Displaying top 8 worksheets found for - Biology Grade 8 .

Some of the worksheets for this concept are Grade 8 term 1 natural sciences introduction to ecology, Natural sciences grade 8, Ns grade 8 revision papers booklet june 2020, Ep biology s levels 5 8, Chapter 1 what is biology work, Name score classification, Students work, Grade 6 basic life science.

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1. GRADE 8 TERM 1 NATURAL SCIENCES INTRODUCTION TO ECOLOGY

2. natural sciences grade 8, 3. ns grade 8 revision papers booklet june 2020, 4. ep biology printables: levels 5-8, 5. chapter 1 what is biology worksheets, 6. name score classification, 7. students worksheets, 8. grade 6 basic life science.

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Class 8 Biology 1

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Eighth Grade (Grade 8) Human Reproduction Questions

You can create printable tests and worksheets from these Grade 8 Human Reproduction questions! Select one or more questions using the checkboxes above each question. Then click the add selected questions to a test button before moving to another page.

  • fertilization
  • negative feedback
  • fertilization.
  • menstruation.
  • afterbirth.
  • umbilical cord
  • amniotic sac
  • vas deferens
  • Fallopian tube
  • seminal vesicle

Female Reproductive System

  • endometrium
  • acts as the entrance to the uterus
  • adds a sugary fluid to semen
  • controls the temperature of the testes
  • nourishes the fetus
  • Fallopian tubes

Male Reproductive System

  • gland that produces sperm
  • birth canal
  • opening to the vagina
  • gland that produces the female's eggs and sex hormone
  • coiled tube system in which sperm mature
  • sperm cell joined with the egg cell
  • organ that nourishes the fetus
  • a male sex hormone
  • passageway for the egg and the place where conception occurs
  • tube from the bladder through which urine leaves the body
  • gland that produces a clear, sticky fluid when the male is sexually excited
  • tubes that carry sperm from the epididymis
  • sex cells produced in the testes
  • hormones produced in the ovaries
  • ejaculation
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COMMENTS

  1. Eighth Grade (Grade 8) Biology Questions for Tests and Worksheets

    Looking for Biology worksheets? Check out our pre-made Biology worksheets ! Eighth Grade (Grade 8) Biology Questions You can create printable tests and worksheets from these Grade 8 Biology questions! Select one or more questions using the checkboxes above each question.

  2. 8th Grade Biology Worksheets

    (324) results found Sort by: Most-Popular x Biology x 8th Grade x Worksheets WORKSHEETS What Are the Parts of a Seed? This science printable about plants challenges students to identify the parts of a seed and the stages of germination. Subjects: Science Biology Plants and Botany Download Add to Favorites CLASSROOM TOOLS

  3. Eighth Grade (Grade 8) Science Worksheets, Tests, and Activities

    Print our Eighth Grade (Grade 8) Science worksheets and activities, or administer them as online tests. Our worksheets use a variety of high-quality images and some are aligned to Common Core Standards. Worksheets labeled with are accessible to Help Teaching Pro subscribers only.

  4. Eighth Grade, Human Biology & Health Lesson Plans

    Lesson Plan Grade: 8th-12th. In this lesson, students will do a series of activities to explore the role of antibodies in our immune system. They will also investigate how doctors use monoclonal antibodies as part of immunotherapy to treat diseases like cancer. Read more.

  5. Printable Biology Worksheets and Answer Keys, Study Guides and

    8th Grade High School Biology Worksheets and Answer Keys, Study Guides and Vocabulary Sets. BIOLOGY is the science of life. Biologists study the structure, function, growth, origin, evolution and distribution of living organisms.

  6. 8th grade biology resources

    This resource is a two-page visual notes sheet that focuses on Earth's natural resources. The notes will help students differentiate between renewable and nonrenewable energy resources. My doodle notes include high-definition graphics that look great inside interactive notebooks, binders, or on a poster.

  7. Eighth Grade (Grade 8) DNA, RNA, and Genetics Questions

    Grade 8 DNA, RNA, and Genetics. A segment of DNA on your chromosomes that codes for a trait is a . base. nucleotide. gene. phenotype. Grade 8 DNA, RNA, and Genetics. In guinea pigs, short fur (S) is dominant, and long fur (s) is recessive. A female guinea pig with short fur is mated with a male long fur.

  8. 8th Grade Human Biology Worksheets

    8th Grade Human Biology Worksheets. Filter. Sort by: Most-Popular Relevance; Most Popular; Most Recent; Most Popular. x Human Biology. x 8th Grade. x Worksheets ... Anatomy Quiz - Grade 8. In this anatomy quiz, students are asked to match the common name for human body parts with the correct scientific name.…

  9. 8th Grade Cellular Biology Worksheets

    8th Grade Cellular Biology Worksheets. Filter. Sort by: Most-Popular Relevance; Most Popular; Most Recent; Most Popular. x Cellular Biology. x 8th Grade. ... Review the meaning of science terms with this vocabulary worksheet and word puzzle about heredity and genetics. Subjects: Vocabulary. Language Arts and Writing. Genetics and DNA. Download.

  10. 8th Grade Biology Worksheets Free

    8th Grade Biology Worksheets Free | TPT Selected Grades 8 th Subjects Biology Prices Free Types Worksheets Formats Easel Google Apps PDF Show all Formats Grades PreK K 1 st 2 nd 3 rd 4 th 5 th 6 th 7 th 8 th 9 th 10 th 11 th 12 th Other Not Grade Specific Higher Education Adult Education Homeschool Staff Subjects Arts & Music English Language Arts

  11. Printable Eighth Grade Science Worksheets and Study Guides

    The big ideas in Eighth Grade Science include exploring the life, earth, and physical sciences within the framework of the following topics: "Earth's Biological History" (Earth's biological diversity over time); "Earth's Structure and Processes" (materials and processes that alter the structure of Earth); "Astronomy: Earth and Space Systems" (ch...

  12. Free Eighth Biology Worksheets

    8th Grade Biology Worksheets Free. 1,613 results. ... Monohybrid Mice! is a practice problem worksheet for monohybrid, or one factor, genetics problems. Students will fill in the Punnett squares, complete a table containing the genotypes and phenotypes of the offspring, and answer a set of questions for each problem. ...

  13. Eighth Grade (Grade 8) Cell Structure and Function Questions

    Grade 8 Cell Structure and Function What structure in a plant cell enables the cell to capture energy from the Sun? cell wall chloroplast mitochondrion central vacuole Grade 8 Cell Structure and Function Which type of cell can make its own food? animal plant Grade 8 Cell Structure and Function

  14. Eighth Grade, Genetics & Genomics Lesson Plans

    Eighth Grade, Genetics & Genomics Lesson Plans (6 results) What traits are heritable? How different is your DNA from a frog's, a mouse's or even your relative's? Can your genes tell doctors what is the right dose of a medicine for your body? These are the types of questions scientists are answering with genetics and genomics.

  15. Cellular Respiration (Grade 6-8)

    Here are three visual depictions of cellular respiration - an equation, an output description and an illustration. 1) Equation: C6H12O6 (1 glucose molecule) + 6 O2 = 6 CO2 + 6 H2O + 36 ATP (ENERGY) carbohydrate + oxygen = carbon dioxide + water + ATP energy. 2) Description of the molecules: created in all three stages of cellular respiration:

  16. Grade 8 Cell Structure and Functions Worksheets

    1. Make a sketch of the human nerve cell. What function do nerve cells perform? 2. Write short notes on the following: (a) Cytoplasm (b) Nucleus of a cell 3. Which part of the cell contains organelles? 4. Make sketches of animal and plant cells. State three differences between them. 5. State the difference between eukaryotes and prokaryotes. 6.

  17. 8th Grade Biology Lesson Plans

    (22) results found Sort by: Most-Popular x Biology x 8th Grade x Lesson Plans LESSON PLANS "The Fox and the Goat": A Lesson on Aesop's Fable Use a lesson that provides students with an opportunity to learn about the characters in a fable by investigating their… Subjects Reading Literature Language Arts and Writing Download Add to Favorites

  18. Biology Worksheets, Notes, and Quizzes (PDF and PNG)

    This is a collection of free biology worksheets, notes, handouts, slides, study guides and quizzes. Most content targets high school, AP biology, genetics, anatomy/physiology, immunology, and biology 101 and 102 in college. There is also biochemistry and physics for biologists.

  19. Grade 8 Biology Worksheet 1

    Grade 8 Biology Worksheet 1 | PDF | Stimulus (Physiology) | Cell (Biology) Grade 8 Biology Worksheet 1 - Read online for free. Grade 8 Biology Worksheet 1

  20. Eighth Grade (Grade 8) Botany Questions for Tests and Worksheets

    Grade 8 Botany. A plant that has both male and female reproductive structures is able to. self-replicate. self-pollinate. change colors. none of the above. Grade 8 Botany. The long outgrowth of the ovary that supports the stigma, which collects pollen from the stamens, is the . pistil.

  21. Biology Grade 8 Worksheets

    Biology Grade 8. Displaying top 8 worksheets found for - Biology Grade 8. Some of the worksheets for this concept are Grade 8 term 1 natural sciences introduction to ecology, Natural sciences grade 8, Ns grade 8 revision papers booklet june 2020, Ep biology s levels 5 8, Chapter 1 what is biology work, Name score classification, Students work ...

  22. Class 8 Biology 1 worksheet

    Class 8 Biology 1 Clunysalem1 Member for 3 years 7 months Age: 12-14 Level: grade 8 Language: English (en) ID: 577472 09/12/2020 Country code: IN Country: India School subject: Science (1061951) Main content: Biology (2010783) scrambled words Loading ad... Share / Print Worksheet Finish! Loading ad... scrambled words

  23. Eighth Grade (Grade 8) Human Reproduction Questions

    Check out our pre-made Biology worksheets! Share/Like This Page Tweet: Filter By Grade You are browsing Grade 8 questions. View questions in ... You can create printable tests and worksheets from these Grade 8 Human Reproduction questions! Select one or more questions using the checkboxes above each question.