Volpe, Karen.
Get to know levers / [book] - 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.
9780778744849 (pbk. : alk. paper) 9780778744672 (reinforced library binding : alk. paper)
2009004583
Levers
TJ147 / .V67 2009
621.8 VOL
Get to know levers / [book] - 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.
9780778744849 (pbk. : alk. paper) 9780778744672 (reinforced library binding : alk. paper)
2009004583
Levers
TJ147 / .V67 2009
621.8 VOL