This science project has students collect wood samples and invent new uses for different types of wood based on its properties.

The goal of this science fair experiment is to demonstrate the effects of air pressure on objects and analyze applications of air pressure principles.

This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.

Learn all about balance and motion as your child designs a corn maze!

This cool and easy elementary school science fair project idea provides the basic information on the use of our senses to experience the world about us.

Would your child like to learn about a hidden world? All she needs to do is open her box of markers!

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

If your fourth grader is obsessed with all things glow-in-the-dark, then here's an activity that will really light up her imagination!

April showers may bring May flowers, but your child can preserve the beauty of spring's bounty all year long with this simple craft project!

Teach your child how to make an all-natural, yellow-brown dye, using just walnut shells and water. This deep dye can be used on textiles, art, and wood.

In this project, all you need is a protractor to learn how to use the altitude of Polaris to find latitude on Earth. Polaris is also known as the North Star.

To help your child learn how to use a thermometer, try this temperature collecting activity at home.

Want to see a great example of Newton's first law? Kids will learn about basic physics with this fun, ballistic experiment.

Excite your fourth grader by recreating ancient Viking myths. This miniature longboat will explore the principle of water molecules expanding when heated.

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

Soil and energy don't go together, right? That would be as bizarre as a pairing of peanut butter and marshmallows! Well, actually...

In this activity, you'll not only make your own bouncy balls at home, but your child will also learn how polymers are made.

Try this chemistry experiment with your curious kid and get some "shocking" results!

Deck the halls with last season's Christmas lights for a spectacular and electrifying science activity.

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

How greasy are your potato chips? Students will use a reliable method to quantify greasiness and compare different brands in this great science fair project.

Let your fourth grade chef mix up butter and sugar with scientific principles about different states of matter, and get delicious toffee, too.

Is cleaning with lemon effective? Get ready to give this science project some elbow grease and find out if acidic lemons can be used as a cleaning agent.

This science fair project idea explores the egg's thin membrane.

How well can people recall what they have observed. Test your knowledge in this fun experiment.

This science fair project idea explores the different properties & interactions of sugar molecules.

Magnets vary in strength. Have your young scientist figure out which kind of magnet is the strongest when you have him conduct this attractive experiment.

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.