The next time you've got a restless second grade earth scientist on your hands, use this experiment to demonstrate crystals and make a tasty treat, too!

First grade science often covers solids, liquids, and gases. This silly science explores serious facts about the difference between all three.

Is it solid or liquid? Create oobleck and witness the amazingly weird oscillation between the two!

Explore solids and liquids with your young scientist by making gluep, a goopy substance that can behave like both a solid and a liquid!

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