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

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 science fair project idea observes products available in the school cafeteria and waste produced by these products.

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

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 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.

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.

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

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

Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

Find out which kind of bubble wrap fares best when put in impact.

In this science fair project, students make their own rain gauge to measure rainfall.

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

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 idea produces varying pitches of sound.

Students pit the heat capacity of water against the heat capacity of oil while looking at the effects of dipole rotation in this cool science fair project idea.

Science fair project which tests various sedimentary, igneous and metamorphic rocks to find out whether one rock family is stronger than the others.

This science fair project on testing water hardness is a great introduction to practical chemistry. Test and learn the difference between hard and soft water.

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

Wonder why bugs always fly around your lights at night? This experiment determines whether insects are attracted to the heat or the light.

This project determines the age of a tree using a growth factor chart instead of cutting the tree down to count the rings in its base.

In this pinto bean germination experiment, you'll learn about how fertilizer aids in growing pinto beans into seedlings.

This project explores ways to prevent static electrical shocks.

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

Glass is see-through, but usually you can still see that it is there. In this experiment, we use baby oil to make glass go completely invisible.

This experiment examines whether storing your orange juice at different temperatures affects its acidity.

Examine which metal conducts more heat by boiling water in 3 pans made of aluminum, copper, and stainless steel.

Check out this cool science fair project idea to explore the risk of mechanical deterioration of artifacts placed in a storage box due to mold outbreaks.