Science fair project the demonstrates Newton's Third Law using a milk carton filled with water.

Science fair project which determines whether plants are able to get enough nutrients from different types of garbage.

Science fair project which identifies the most effective insulator that you could use to make a winter coat by comparing how well cloth and cotton trap heat.

In science fair projects, middle school students discover why nitrogen fixing bacteria are important to plant growth.

In this science fair project, kids start a chemical reaction that will make a balloon inflate itself!

This project examines Newton's First and Second Laws of Motion with a bicycle and water balloons.

Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.

The buoyant force of water explains why some objects float in water. But why do some objects sink? Find out in this physics experiment and learn about density.

Check out this cool science fair project on identifying rocks and minerals for kids.