Introduce your second grader to the crazy world of static electricity with just a balloon and a sheet of paper.

Kids conduct a cool balloon rocket experiment in this fun science fair project idea. Does a greater volume of air mean a greater distance traveled?

In this exciting design challenge, your child will use design thinking skills to create a mixture that can inflate a balloon.

The objective this science fair project is to determine whether a bigger bag will allow a homemade hot air balloon to fly higher than smaller bag.

Your child will learn science and make a fun new malleable toy with this balloon sandbag science experiment.

Try the classic balloon-on-the-wall trick with your kid and watch static electricity in action.

Check out this fun science fair project to make a vinegar and baking soda balloon and demonstrate how gas is created as a result of the chemical reaction.

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

In this science fair project, kids start a chemical reaction that will make a balloon inflate itself!

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

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

Set your young chemist up for an afternoon of science-fueled magic with a deceptively simple activity starring baking soda and vinegar!

How powerful is the reaction between baking soda and vinegar? Find out here!

Kids will learn how to make a steam powered rocket boat, also called a putt putt boat or a pop pop boat, in this great science fair project for 4th graders.

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

This cool science fair project teaches kids about temperature, density and buoyancy using balloons that float with normal air. No helium required!

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

Explore the chemistry of latex polymers with this outrageous, hilarious science activity.

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?

In this project, different brands of microwave popcorn are tested and compared.

This science fair project idea produces sounds by creating vibrations using different objects.

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

The project is to investigate yeast fermentation and its results on hand of latex balloons.

This science fair project idea examines whether adding gelatin causes a solid to have a higher melting point and/or melt slower.

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.

In this CD hovercraft science project, students will construct their own DIY hovercraft.

This science fair project idea provides evidence that air is everywhere and takes up space.

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

Science fair project that examines how temperature affects density and how density in turn affects the behavior of helium gas.