This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

The next time you've got a restless second grade earth scientist on your hands, use this experiment to demonstrate crystals and make a tasty treat, too!

What's a liquid? What's a solid? What better way to experiment than by turning a childhood favorite, ice cream, into a homemade science lesson!

Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.

This 4th of July, explore fourth grade science and make some safe fireworks in your own backyard using soda pop!

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

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

On the next chilly, winter day, invite your fifth grader to make a hand warmer by experimenting with the loaded combination of a few natural ingredients.

Help your fifth grader execute this experiment involving a lit candle (submerged in water!) to show him the wonders of heat energy transference.

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

I scream, you scream, we all scream for homemade spearmint ice cream!

First grade science often covers solids, liquids, and gases. This silly science explores serious facts about the difference between all three.

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.

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

Chemistry isn't just incredible ... sometimes its edible! These crystal lollipops are a delicious introduction to chemistry concepts.

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

Here's a classic celery science experiment that uses celery and food coloring to demonstrate how plants absorb water.

Make water and clay play a little more scientific with this hands-on experiment that teaches displacement and shows how an object's shape affects its buoyancy.

These flying potato poppers make a cool sound, create a celebratory mood, and they can teach your child about the power of air pressure.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

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.

Help your second grade scientist explore the timely topic of wind speed using a version of the classic Beaufort Scale.