Simple machines

Illustrations and text describe different examples of the use of simple machines known as wedges.

Illustrations and text describe different examples of the use of simple machines known as screws.

Describes simple machines called planes or ramps and how they are used to make work easier.

Learn the basics about wheels and axles.

Learn about the basics of wedges.

Learn about the basics of screws.

Learn about the basics of pulleys.

Learn about the baseics of levers.

Learn about the basics of inclined planes.

"Presents information on simple machines with a focus on wheels and axles. Explains what wheels and axles are, how wheels and axles work, and includes examples of past and present uses. Intended for third to fifth grade students"--Provided by publisher.