In this open-ended activity, students will be given a small quantity of three types of materials and asked to design a prototype for “something that will improve the school.”

Little scientists will make inferences about hearing loss, pitch, and frequency in this great science fair idea that puts the human ear to the test.

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

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.

This science fair project idea determines if the temperature of rubber effects how high it bounces.

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 is a fantastic and easy science experiment where kids will learn about elasticity by testing how high bouncy balls of different materials can bounce.

This project uses science and art to help students learn and teach others about Earth's endangered and extinct species.

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

Does your middle school teenager have good reflexes? Gauge his reaction time in this science and math activity that requires only a yardstick and a friend.

This fun and easy middle school science fair project idea explores the topic of pollution and demonstrates if polluted soil affect the growth of green plants.

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

You've heard all about oil spills, but can they really be that bad? After all, vegetable oil is in almost every yummy baking good from cookies to brownies.

Find out whether optical mice are useful on all surfaces or if there are drawbacks to this supposedly superior solution to the traditional roller-ball mouse.

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.

Learn about where colors come from and how light absorption works in this fun experiment! All you need is a flashlight, construction paper, and cellophane!

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.

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

Science fair project which measures whether tsunamis are more destructive when they are caused by an earthquake or by a meteor.

This science fair project focuses on the use of the enzyme amylase found in human saliva to break down starch into sugar.

Science fair project examining barometric pressure, and how it can be used to predict the weather. How does atmospheric pressures relate to weather conditions?

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

Science fair project which will teach you more about the foods that you eat, and learn which ones are healthier choices.

What is elasticity? Students will investigate how this concept applies to bouncing ball physics by testing the bounces of balls made out of different materials.

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

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