Provides information on simple machines, from a screw to a pulley, labels parts of these simple machines, like the fulcrum of a lever, and also determines how these simple machines make workloads easier.

Originally released by Mazzarella Media, 2007. Streaming video file encoded with permission for digital streaming by Infobase on May 02, 2015.

What Simple Machines Do (1:53); --Types of Simple Machines (1:57); -- Simple Machines: Wedge (1:43); -- Simple Machines: Screw (1:53); -- Simple Machines: Lever (2:45); -- Simple Machines: Wheel and Axle (1:59); -- Simple Machines: Pulley (1:35); -- Force (2:00); -- simple machines (1:09);.