Do this experiment to help your first grader understand how salt can be removed from salt water. All it takes are a few household materials.

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

This is a quick, easy science fair project that conveys the idea of density to upper elementary students.

Want to make Halloween truly eerie? Science to the rescue! These ghouly hands come alive with a little help from simple chemistry.

Try this experiment to give your curious kid a more "solid" understanding of how temperature affects the states of matter.