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.

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

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.

Help your child create a working lung model that fills with air just like the lungs inside of his own chest when he breathes.

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?

The goal of this science fair project is to demonstrate different ways to generate static electricity and record its effects.

What's the relationship between temperature, air humidity and static electricity? Kids will find out with this free static electricity science fair project.

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.

This science fair project explains the process of how the lungs expand and contract with the help of the diaphragm.

Create safe lightning for kids! They'll learn how to make lightning at home with this fun science fair project idea illustrating static charges and grounding.