Volpe, Karen.

Get to know levers /by Karen Volpe. --
Levers
New York :Crabtree Pub.,c2009.

32 p. :col. ill. --

Includes Internet addresses (p. 32) and index.

Describes the simple machine known as a lever, how it works and how it is used.

LSC25.95

Canadian

1.Levers--Juvenile literature.2.Simple machines--Juvenile literature.Dynamic Details
#000LCCN:2009-4583