Air invisible; it doesn't make sounds; you can't pick it up and throw it. So how do we know it exists? Help your second grade scientist figure it out.

Find out whether we can create motion in a dish and as a result, create a wonderful and colorful show.

Water can go from solid to liquid to gas...but how does popcorn go from kernel to snack? Invite your first grade scientist to find out.

Build an electroscope, a simple device that measures static electricity, or the freely flowing electrical charges of the atmosphere!

Investigate which substances are most effective at removing salt from water.

This craft is an excellent way to learn about African-American history, and it also provides fine motor practice.

With this hands-on activity, you'll show how fall colors are hidden in the leaf all year long!

This fun middle school science fair project idea explores the process of respiration and determines whether boys and girls have the same lung capacity.

In this activity your child will make a coiling snake out of simple household materials, and also find out why they coil.

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

Check out this fun high school science fair project idea to investigate how the cell membrane regulates what moves into and out of cells.

Did you know a mouse eats almost fifty times as much as a cow? Find out how and test out the strange science with your friends!

This science fair project idea measures out the sugar of various foods and find out whether people can correctly determine how much sugar is in common foods.

Find out the differences (if any) in the frequencies of voices produced from a computer, from a phone, and directly coming out of the voice box of a human.

Find out which type of sponge holds the most water.

Find out whether matte or shiny nail polish lasts longer.

Find out whether matching resonant frequencies can cause objects to shatter.

Find out whether people within a family tend to have matching fingerprints.

Find out which kind of bubble wrap fares best when put in impact.

Find out whether putting something on top of a plant will inhibit its growth.

The goal of this project is to create an exciting topographical map out of dough.

Find out if most people can distinguish the difference between tones on different instruments.

In this fun experiment, we'll find out how color affects heat absorption!

Will male or female hair grow faster? Find out in this science fair project idea!

Test out various brands of permanent markers to see which one is least water soluble.

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

Check out this cool science fair project on identifying rocks and minerals for kids.

Find out whether a longer airplane will fly farther or a wider paper airplane.

Do different types of oil mix or stack? Find out in this science fair project idea!

In this activity, find out who the flowers' "partners in crime" are by being a flower spy!