Get your sense of humor ready for this fun science experiment that demonstrates the fundamental physics of air pressure.

This homemade barometer allows your little scientist to contemplate and compare different air and weather conditions.

Take to the air with science by experimenting with helicopter seeds right in your own backyard!

Make your own helicopter using a paper clip and a sheet of paper. Hold the spinner up in the air, let it go, and watch it spin gracefully to the ground.

Science fair project that examines what causes thunder and why a thunderclap sounds so loud. How is lightening related to the creation of sound waves?

Teach your kids about entropy with this fun, easy exercise, and teach your money to dance while you're at it!

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

Your third grader will delight in learning about sound waves as he observes the different sounds created by tapping on glasses with varying amounts of water.

Has your child ever asked you how a submarine works? Here's a simple bathtub project that will make for a hands-on answer.

If your science savy third grader is up for a challenge, let her bend light with a casserole dish!

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

Ready for takeoff! Make science fun and teach about levers and fulcrums as your child sends buttons flying.

What is elasticity? Students will investigate how this concept applies to bouncing ball physics by testing the bounces of balls made out of different materials.

Stir up some enthusiasm for experimentation with this candy-cracking science experiment!

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

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