Do you think you can blow down a sand castle with a mighty wind? Find out which material stands up best to erosion in this erosion experiment.

The goal of this golf science fair science fair project is to determine whether the temperature of a golf ball affects its elasticity and its rebound.

Delight your budding scientist with this cool physics magic trick and teach her some basic physics concepts while you're at it!

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

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

In this science fair project, students create their own miniature salt flats at home.

This project will explore whether test subjects, deprived of points of reference, will, in attempting to walk a straight course, walk in circles.

Determine whether butterflies like to drink sugar water, salt water, or plain water.

Kids will learn some cool stuff about chemical reactions by determining what happens when you mix different concentrations of hydrogen peroxide and yeast.

Examine the effect of pressure on carbonation in soda.

This plaster fossil activity is a fun supplement to preschool science. Use plaster to make imprints of your child's handprints, footprints and other objects!

In this science fair project, we'll explore how blocking the sun's light can stop those can stop photosensitive paper from changing color.

Is it a square or a circle? See if you can trick your friends with this zany science project!

Do hand soaps and sanitizers prevent the growth of bread mold? If so, why? Kids will find out with this fun and informative science fair project idea.

Did you even wonder why some rocks are round and smooth while others are broken up into small pieces?

In this hands-on design challenge your child will make their very own Rube Goldberg Machine.

Create a three-dimensional X-ray of your child's hand in this simple modeling activity. All you need to get started are black paper and drinking straws

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

Young physicists will wrestle with a discrepant event: the Hammer Ruler Trick. They'll make some inferences about torque, balance, and center of gravity.

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

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

Experiment with buoyancy to learn how a submarine rises and sinks in this classic science experiment.

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

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

Take advantage of the spring and summer sun in this arts and crafts activity that has your learner creating pretty flower prints.

Teach your child about recycling and gardening as she re-uses an empty plastic milk gallon jug to craft a swan-shaped plant container!