How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

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

This science fair project idea creates cool new colorful fabric pattern designs and experiments with the mixing of colors.

Using a toy race car kids create a visual model of the Doppler Effect.

This project is a vivid, concrete introduction to the basic but important idea that plants need sunlight and water to grow.

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?

Kids will learn how to show the direction of magnetic field lines and create a permanent model using iron filings in this great science fair project idea.

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

Step into the fantastic world of colors with a project that explores what shade you -- and your friends -- like best.

This experiment has students record rat behavior to learn about the benefits of rats and research rat myths throughout history.

This science fair project idea investigates emulsifiers that allow oil and vinegar to mix.

Check out this fun science fair project idea for 1st grade: a solar eclipse model that demonstrates total, partial, and annular solar eclipses.

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

Get down to the rubber with this science project that tests the effectiveness of different types of erasers.

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

Plants and light seem to be good buddies, but how far does the friendship really go?

Do you think you could walk around upside down -- with your feet in the air and your head on the ground?

This science fair project idea's objective is to become familiar with items your family regularly throws in the trash.

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.

This science experiment has students test whether a snail moves faster on concrete or dirt.

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

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?

In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.