Thales, Sharon. <br/><br/>
Levers to the rescue / 
by Sharon Thales. 
 - Mankato, Minn. :  Capstone Press,  c2007. 
 - 24 p. :  col. ill. ;  21 cm. 
 - First facts. Simple machines to the rescue .
 - Thales, Sharon.  Simple machine to the rescue.  First facts. .
<br/><br/>Includes bibliographical references (p. 23) and index. 
<br/><br/> School Library Journal, May 2007 
<br/><br/> Explains how levers work, discussing the load, fulcrum, and effort in first-, second-, and third-class levers; presents examples of levers used in the past and in everyday contemporary life; and includes a related activity. 
<br/><br/> 2.4  K-3  Follett Library Resources 
<br/><br/><label>ISBN: </label>0736867473 
<br/><br/><label>LCCN: </label>2006021501 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Levers.<br/>Simple machines.
<br/><br/><label>LC Class. No.: </label>TJ147  / .T43 2007 
<br/><br/><label>Dewey Class. No.: </label>621.8