Bodden, Valerie.

Wheels & axles / Wheels and axles. Valerie Bodden. - 1st ed. - Mankato, MN : Creative Education, c2011. - 23 p. : col. ill. ; 23 cm. - Simple machines. .

Includes index.

What are wheels & axles -- Wheels & axles in action -- A closer look.

"A foundational look at wheels and axles, explaining how these simple machines work and describing some common examples, such as doorknobs, that have been used throughout history"--Provided by publisher.

ISBN: 9781608180134 (hardcover : alk. paper) 1608180131 (hardcover : alk. paper)

LCCN: 2009048844

Subjects--Topical Terms:
Wheels.
Axles.

LC Class. No.: TJ181.5 / .B593 2011

Dewey Class. No.: 621.8/11