Which music genres have the fastest tempos? The slowest? This experiment determines if there's a relationship between beats per minute in a song and its genre.

Learn about sound physics and do a survey experiment to explore the difference between sound and noise in this science project.

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

This science fair project idea compares biodiversity between drops of water.

This science fair project idea investigates the difference in reaction times between boys and girls.

How powerful is the reaction between baking soda and vinegar? Find out here!

Is it solid or liquid? Create oobleck and witness the amazingly weird oscillation between the two!

The objective of this science fair project is to explore the relationship between acidic and basic compounds.

This science fair project teaches students the differences between fruits and vegetables.

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

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

In this science fair experiment, children demonstrate the relationship between the amount of stuff and the amount of pressure in a closed system.

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

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

The purpose of this study is to determine if people can tell the difference between organic and conventional food from looking at, smelling and tasting it.

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

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

First grade science often covers solids, liquids, and gases. This silly science explores serious facts about the difference between all three.

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.

In this science project, the center of gravity is explored.

In this 3rd grade science activity, you'll experiment with the little-known fourth state of matter: polymers! Mix borax with white glue and watch what happens.

Did you know your body is full of simple machines? This project looks at one of the third-class levers in the human body: your arm!

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

This science fair project will help students learn about non-vascular plants, such as mosses.

In this science fair project, kids will be able to see where germs reside on their hands while gaining insight into the benefits of thorough hand washing.

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.

Recreate the fantastic phenomena of solar eclipses with your child using just a flashlight, a quarter, and her very own face!

Try this simple 2nd grade science experiment to teach your child about the principles of luminosity and light reflection.

Teach your kids about entropy with this fun, easy exercise, and teach your money to dance while you're at it!

Start your toy engines -- this is going to be a fast and friction-filled race!