This kinesthetic learning activity will help your fourth grader get a firm grasp on the immensity of the solar system.

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

In this activity, children will let their imagination run wild as they design and build a new planet in the solar system.

Your kid will delight in creating an extraterrestrial vehicle from goods found around the house. There's no telling where her imagination will go!

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