Greathouse, Lisa, <br/><br/>
How Toys Work / 
Lisa Greathouse  
 - 32 pages :  colour photographs ;  23 cm 
 - Forces and Motion .
 - Forces and motion .
<br/><br/> Text and photographs examine the inner-workings of toys, discussing the scientific principles that relate to toys, and providing instructions for a related project. 
<br/><br/> Grades 4 to 6 
<br/><br/><label>ISBN: </label> RM378.00 9781433303074  RM37.80 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Toys--Juvenile literature<br/>Toys--Juvenile literature--Design and contruction <br/>Simple machines--Juvenile literature<br/>Mechanics
<br/><br/><label>Dewey Class. No.: </label>688.72