Sound. 

 - North America ed 
 - Milwaukee :  Gareth Stevens Publishing,  c2003. 
 - 32 p : col. ill. 
 - Discovery Channel school science : physical science .
<br/><br/> "Originally published. Bethesda, Md. : Discovery Enterprises, 2000. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sound