Become familiar with ratios and learn how to measure the diameter of the Sun and the Moon in this fun science fair project idea.

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.

Check out this game that provides an enjoyable way of demonstrating how recorded results can be expressed in whole numbers, fractions, and decimals.

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