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3rd Grade Life Science Learning Resources

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Third Grade

Life Science

Life Science Crossword: Plant and Animal Cells

Kids learn important plant and animal cell vocabulary as they plug the words into their correct spots and complete the puzzle.

How Old is That Tree?

Try this simple activity with your child to guesstimate the age of a tree in your yard and nurture her developing math skills while you're at it!

Greenhouse Project

This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

Transpiration Experiment

In this enlightening transpiration experiment, kids will explore how the loss of water from plants through transpiration contributes to the water cycle.

How Does Smell Affect Taste?

How does smell affect taste? Ready your taste buds--in this project, you'll gather some test subjects and do a taste test to see how much smell affects taste.

Animal Word Search: Endangered Species

Help your child learn a little about endangered species and why they're in danger with this printable word search.

Which Food Will Mold the Fastest?

This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

Do Plants Need Water?

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

Do Hand Soaps and Sanitizers Prevent the Growth of Bread Mold?

Do hand soaps and sanitizers prevent the growth of bread mold? If so, why? Kids will find out with this fun and informative science fair project idea.

Life Science Crossword: Photosynthesis

Here's a fun way to review photosynthesis with your child! She'll show off her science knowledge as she answers questions to complete the crossword puzzle.

Factors Affecting Seed Germination

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

Third-Class Levers in the Human Body

Did you know your body is full of simple machines? This project looks at one of the third-class levers in the human body: your arm!

The next time you're on a hike, be sure to take this leaf chart to guide you in identifying different types of leaves!

Alligator vs. Crocodile

Some people think alligators and crocodiles are the same, but there are some distinct differences. Check out this cool worksheet to learn what they are.

Do Plants Breathe?

Do plants breathe? Not exactly. They do respire though! This activity will help your kid with see that plants are producing the oxygen we need to survive.

Habitats Word Search: Ocean Animals

In which habitat could you find a blue whale, a squid, and a shark? The ocean, obviously! Have your kid find ocean animals with this word search worksheet.

Make Spider Web Art!

This craft is a great way to explore the fascinating world of spiders and their webs as you collect spider webs from around your house with your third grader.

Can Plants Grow Without Sunlight or Water?

Test whether plants can grow without sunlight and water.

Effective Hand Washing

This science fair project idea determines which method of hand cleansing is the most effective.

The Life Cycle of a Peanut Plant

As your child completes this science worksheet on the life cycle of a peanut, he'll get the chance to practice his sequencing, labeling, and drawing skills.

Habitats Word Search: Desert Animals

Kids find desert animals in this science word search. Animal habitat worksheets help students learn about life forms in different environments.

Water Transport in Plants

In this science project, learn about water transport in plants and make a beautiful dyed floral arrangement with cohesion, adhesion, and xylem tubes!

Animal Habitats: Ocean

Animal lovers can learn about sea creatures like sharks, tortoises and seahorses with this ocean habitat activity page, full of fun facts and a word search.

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