The Color Me Physics Activity Book is a follow up to the popular coloring book. Your kids are guided by Abigail Atom as they help Hydrogen atoms bond, help electrons find protons and even explore a circuit though a fun board game. 

Here's a free downloadable physics activity/coloring book for early elementary students. 

An additional physics website for all ages you and others might find helpful is called...

Phun Physics!

Developed by the Univeristy of Virginia, the website contains program information created to introduce several basic physics topics in a fun and exciting manner. The link below will take you to the demonstration tab, intended to provide a description of the demonstration, an explanation for elementary students, and further explanation for high school students. CLICK HERE!

EXAMPLES:

Show how thermal current works…with flame that pushes air, with heat that travels through plastic spoon vs. metal spoon (heat conductivity) and experiment re molecular pressure caused by heat/cooling.