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

This science fair idea is a great way for kids to explore static electricity. Kids will give a comb a static charge and watch as it separates pepper from salt.

In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.

In this project children practice the scientific method while playing with puffy paint.

This project compares the strength of one, two, and three-ply toilet paper.

This science fair project idea explores if the length of the string that an object is suspended on has an effect on how fast or slow it swings.

Would your dog prefer homemade or store-bought food? Raw or cooked? Test your dog's preferred diet in this fun experiment.

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

In this physics project, learn about the relationship between light intensity and distance using a laser pointer, flashlight, and graph paper!

This science fair project idea determines what household items are good conductors of electricity.

This science fair project teaches students about wilting and browning of salad greens.

The goal of this fun science fair project idea is to microwave candy and investigate: do some colors of M&Ms melt faster than others?

Students will investigate the thermal conductivity of metals by learning how to measure thermal conductivity with this fun and easy science fair project idea.

How do organic materials become soil? This science experiment measures what materials biodegrade.

This science project explores the concept of being opaque or clear. Can you make something clear opaque? Or something opaque clear?

Tired of gum with flavor that lasts for just a couple of minute? Put gum to the test with this chewy science experiment!

How does salinity affect the point at which water freezes? Kids will find out by performing this cool melting ice experiment.

In this insulation experiment, you'll learn which clothes keep you warm in the cold, and which make you shiver.

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

Word color association is just a fancy way to talk about the way we connect colors with words.

Set off an a science adventure as you prepare a row of bee homes for your new visitors.

With this cool floating rocks project, your child will get some hands-on experience with buoyancy and learn why certain rocks like pumice are able to float.

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.

Does dough rise faster with unbleached or bleached flour? Investigate in this science fair project idea.

Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

Do earthworms like moisture or darkness? Find out as we explore the relationship between earthworms and light.

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

Demonstrate how you can make your own compass using a magnetized needle. It also allows you to compare magnetic north and geographic north.

Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.