Simple Machines and Mechanics (7.2B) 

Google Images: Simple Machines

You Tube Videos - Dr. Skateboard - Bill Nye - Animated Simple Machines

EdHeads Simple Machines for everyone
Inventors Toolbox for making simple machines

Simple Machines A neat selection of photos and animations 

The Franklin Institute Really good information about simple machines

Popular Mechanics for Kids A really, really cool site

Last updated September 13, 2009