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3rd Grade Life Science Learning Resources

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Third Grade

Life Science

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!

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 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.

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.

Transpiration Experiment

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

Greenhouse Project

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

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.

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

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.

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.

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!

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.

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.

Frogs In Winter

Help your child create a tasty treat that will demonstrate exactly how frogs survive a freezing season.

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.

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.

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.

Under What Conditions Do Potatoes Sprout The Fastest

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!

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!

Talking to Plants

This science fair project idea explores whether talking to a plant will help it grow.

Sense of Smell Activity

Help your child get to know the least-appreciated of the five senses, the sense of smell, with a smelling station.

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.

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