01008cam a2200241 4500 133567028 TxAuBib 20090812120000.0 090202s2009||||||||||||||||||||||||eng|u 2009004583 9780778744849 pbk. $8.95 0778744841 pbk. $8.95 DLC DLC TxAuBib 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. 20091209. Get to know simple machines.