Work and Simple Machines Vocabulary List:
work, efficiency, mechanical advantage, simple machine, compound machine, lever, pulley, screw, wedge, inclined plane, wheel-and-axle

Simple Machine Review Videos:
Fun Science Demons "The Lever" - click HERE
Fun Science Demos "The Pulley" - click HERE
Fun Science Demons "The Inclined Plane" - click HERE
Fun Science Demos "The Wedge" - click HERE
Fun Science Demos "The Wheel-and-Axle" - click HERE

Fun Science Demos "Simple Machines in the Bathroom" - click HERE
Fun Science Demos "Simple Machines in the Kitchen" - click HERE

Simple Machines Review Websites:
Ducksters

Mechanical Advantage Review Videos:
Bozeman Science "Simple Machines" - click HERE
Project Lead the Way "Mechanical Advantage" - click HERE

National Geographic's Simple Machines Challenge - click HERE
Smithsonian Air and Space Museum - Click HERE for "Solving Complex Problems with Simple Machines"