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In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

How much water comes out of snow? Explore this timely question with your kindergarten scientist with this easy winter experiment.

In this science experiment, your child will test the strength of hollow structures in order to understand how strong bird bones really are.

This interdisciplinary card game will have your third grader working on math facts as he travels through the solar system!

What's the science behind those out-of-sight roots? Find out if you can trick roots into growing in different directions.

Celebrate April Fools' Day with a science prank that is sure to amuse...and educate too!

This science fair project investigates why the number of visible stars changes from place to place.

The possibilities are endless with this fun Halloween-themed STEM activity! With simple supplies, your child will experiment, adapt, and use their creativity while they build structures using different specifications.

Explore the scientific concept of capacity by seeing how many pennies you boat can hold before it sinks!

Your child might have noticed how bubbles quickly lose their colors and pop. Check out this creative way to make those bubbles last longer.

It's not actually that hard to get energy from garbage! Kids learn how to make biogas in the form of methane with this cool and easy science fair project idea.

You've heard all about oil spills, but can they really be that bad? After all, vegetable oil is in almost every yummy baking good from cookies to brownies.

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

This science fair project idea examines whether boys and girls differ in reflexes.

This year on Mother's Day, try this gift project that brings together an appreciation for gardening with a hands-on lesson in art history.

Be a chemist for a day and study the simple reaction between sugar and heat. Try heating sugar and see what happens!

Test out the pH levels of soil in your backyard versus soil in more wild environments to solve this science case.

This science fair project idea highlights decomposition rates by comparing how long it takes an item to decompose in a compost pile vs. a landfill.

Is it magic? No...it's the amazing, gravity-defying capillary action experiment! Kids will love this dramatic and enlightening science fair project.

Can you plant the insect-attracting borage plant to increase the amount of beneficial insects in your garden? Find out in this experiment!

Here's an easy experiment that lets your first grader practice the scientific method, while watching a caterpillar eat.

Show your fourth grader how to see her heart in action. Make a simple device out of a drinking straw and clay to help her spot the movement of her pulse!

What does a raindrop look like when it splashes on the ground? Is each raindrop unique like snowflakes? Find out how raindrop size varies in this experiment.

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

Science fair project that compares the ecology of different soil samples by identifying which sample has the most invertebrates living in it.

What's the best way to make DIY compost? Kids will learn about aerobic and anaerobic decomposition while learning to appreciate the value of composting.

In this experiment, kids will see if pruning tomato plants makes them more fruitful and learn about the factors that contribute to a plant's fruit production.

Learn how to make a food pyramid with animals in a a coniferous forest ecosystem around your home.

In this insulation experiment, you'll learn which clothes keep you warm in the cold, and which make you shiver.

Spiders don't go to grocery stores or fast food chains to get their food -- they set up traps and wait for their food to come to them!