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

Includes index.

What is an inclined plane? -- Splitting forces -- Understanding force and effort -- Getting a grip -- Simple machines -- Moving planes -- Inclined planes in nature -- Gaining an advantage -- Surfing simple machines -- Science in action -- What have you learned?.