Lever, screw, and inclined plane : the power of simple machines /

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by Thompson, Gare.
[ 01. English Non Fiction ] Series: National Geographic science chapters. Published by : National Geographic, (Washington DC :) Physical details: 40 p. : col. ill. ; 21 cm. Subject(s): Simple machines. Year : 2006 01. English Non Fiction Item type : 01. English Non Fiction
Location Call Number Serial Data Published Status Date Due
West Kent Elementary School 621.8 THO Available

Includes bibliographical references (p. 39) and index.