Royston, Angela.
Levers / Angela Royston ; [illustrations by Barry Atkinson]. - Chicago : Heinemann Library, c2001. - 32 p. : col. ill. ; 27 cm. - Machines in action .
Includes bibliographical references (p. 32) and index.
Explains how levers work, describes different machines that use levers, and tells how to create an example of a lever in a pop-up card.
4.2 3-6 Follett Library Resources
1575723190
00035002
Levers--Juvenile literature.
Simple machines--Juvenile literature.
Levers.
Simple machines.
TJ147 / .R86 2001
621.8/11
Levers / Angela Royston ; [illustrations by Barry Atkinson]. - Chicago : Heinemann Library, c2001. - 32 p. : col. ill. ; 27 cm. - Machines in action .
Includes bibliographical references (p. 32) and index.
Explains how levers work, describes different machines that use levers, and tells how to create an example of a lever in a pop-up card.
4.2 3-6 Follett Library Resources
1575723190
00035002
Levers--Juvenile literature.
Simple machines--Juvenile literature.
Levers.
Simple machines.
TJ147 / .R86 2001
621.8/11