Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

Take this "paper plate snack test" with your child for a hands-on lesson in making healthier choices to teach your child about what's in his food.

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

Do plants get crowded? Have your curious kid investigate how plants respond if they're forced to grow together in a confined space.

What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.

Be a chemist for a day and study the simple reaction between sugar and heat. Try heating sugar and see what happens!

Take a closer look at your furry friend (or the furry friend of a neighbor -- with permission) to discover if communication exists between cats and humans.

What is persistence of vision? With this hands-on science fair project idea, students will demonstrate this cool and dramatic phenomenon in their own classroom.

In this experiment, your child will create two compost bins and see if he can determine what attracts fruit flies.

Discover whether cold or hot water from the faucet will boil faster on the stove.

A homemade lava lamp gives any room a retro flair. Find out how to make a homemade lava lamp, and learn some science too, with this educational activity.

This project examines whether people's taste perception is influenced by what they see.