These sites focus on gears and explain the different types and functions of gears as well as how they operate. Interactive models, experiments, lesson plans, and games are included. There are links to eThemes Resource on simple and advanced simple machines.
These resources explore the basics of simple machines. Topics include pulleys, wheel and axle, inclined planes, wedges, screws, and levers. There is a link to an eThemes Resource on advanced simple machines.
These sites include interactive models of machines such as levers and pulley systems. Explains basic concepts of physics such as mechanics, force, and motion. Includes sites on the mechanics of sports and Leonardo da Vinci's inventions.