Volpe, Karen.

Get to know levers / Karen Volpe. - New York, NY : Crabtree Pub. Company, 2009. - 32 p. : col. ill. ; 29 cm. - Get to know simple machines .

Includes index.

Levers make work easier -- Parts of a lever -- Catapult shooter -- First class levers -- Moving the fulcrum -- Second class levers -- Crack that nut -- Third class levers -- Small effort, big result -- Levers for fun, too -- All around you -- Working together -- Glossary.

ISBN: 9780778744849 (pbk. : alk. paper) 9780778744672 (reinforced library binding : alk. paper)

LCCN: 2009004583

Subjects--Topical Terms:
Levers.

LC Class. No.: TJ147 / .V67 2009

Dewey Class. No.: 621.8