Canizares, Susan <br/><br/>
Simple Machines 

 - New York, USA  Scholastic Inc.  1999 
<br/><br/> Rhyming text and photographs explore the many tasks that can be performed by such simple machines as springs, ramps, and pulleys. 
<br/><br/><label>ISBN: </label>0-439-08126-2 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Juvenile Nonfiction
<br/><br/><label>Dewey Class. No.: </label>JN 621.8 CAN