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.

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

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

Kids think of 25 ways to live healthier, more active lives and come up with a plan to put into action in this middle school heath activity.

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