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.

This middle school science fair project determines whether DNA is most easily extracted from under-ripe, ripe, or over-ripe strawberries.

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

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

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.

Find out whether packaged seeds actually do expire in this new science fair project idea.

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

What is vegetative reproduction? Find out how you can clone plants and regrow cabbage from a stem in this cool experiment!