What is condensation? Little mad scientists will learn about condensation, states of matter, and air pressure by conducting this cool science experiment.

Let your fourth grade chef mix up butter and sugar with scientific principles about different states of matter, and get delicious toffee, too.

To help your child learn how to use a thermometer, try this temperature collecting activity at home.

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.

In this plant habitats activity, children play the role of an ecologist and take surveys of different areas to discover the best habitat for dandelions.

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

Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.

This science fair project idea determines the probability of a coin landing heads or tails.

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.

Science fair project which evaluates different athletic shoes in order to find out whether any of them affect a person's ability to run.

What chromosome combinations determine a fetus gender? Use probability to think about whether a sperm and ovum will create a male or female in this project.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

In this activity, your child will make her own "quicksand" to better understand how a substance can be both fluid and solid at the same time.

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

In this science fair project, students will try to discover if test subjects can detect the presence of Monosodium Glutumate (MSG) in food.

This kinesthetic learning activity will help your fourth grader get a firm grasp on the immensity of the solar system.

Here is a quick experiment you can conduct at the playground to introduce or reinforce the concept of Newton's First Law, The Law of Inertia.

Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.

In this activity, you'll not only make your own bouncy balls at home, but your child will also learn how polymers are made.

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

This science fair project idea examines whether boys and girls differ in reflexes.