Text and illustrations describe the simple machines of wheels and axles.

Text and illustrations describe levers, a simple machine.

Text and illustrations describe screws, a simple machine.

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

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

"Uses popular cartoon character Wile E. Coyote to demonstrate science concepts involved with simple machines"--Provided by publisher."--

This book explains the mechanics of wheels and axles, describing a wheel and axle system, wheels and axles for lifting, and wheels moving over rough and smooth surfaces.