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

In this cool project, create a lighted, scale model of the different layers of the Sun, including the core, radiation and convection zones, and photosphere.

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

Here is a hands-on activity to help third graders understand the four points of a compass...and how we use them to get around.

Teach your fifth grader about the wonders of wind by making and observing this winter wind chime.

Show your child how to construct a homemade thermometer. It's hands-on fun and a great way to learn about this important instrument!

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