Silverstein, Alvin. <br/><br/>
Plate tectonics  [electronic resource] / 
Alvin Silverstein, Virginia Silverstein, and Laura Silverstein Nunn. 
 - Brookfield, Conn. :  Twenty-First Century Books,  c1998. 
 - 1 online resource. 
 - Science concepts .
<br/><br/>Includes bibliographical references and index. 
<br/><br/> Discusses plate tectonics, the theory that the surface of the earth is always moving, and the connection of this phenomenon to earthquakes and volcanoes. 
<br/><br/><label>ISBN: </label>9780761332251 9780585245249 (electronic bk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Plate tectonics--Juvenile literature.
<br/><br/><label>LC Class. No.: </label>QE511.4  / .S55 1998