Graf, Mike. <br/><br/>
How does a waterfall become electricity? / 
Mike Graf. 
 - Chicago :  Raintree,  2009. 
 - 32 p. :  col. ill ;  28 cm. 
 - How does it happen? Raintree perspectives .
 - How does it happen? Raintree perspectives. .
<br/><br/>Includes bibliographical references (p. 31) and index. 
<br/><br/>What makes a waterfall? -- The power of falling water -- Early uses of water power -- The waterwheel -- Building a dam -- It's electric! -- Electricity in our homes -- Who uses water power? -- Famous hydroelectrical plants -- The Hoover dam -- Other types of energy -- The benefits of water power -- Water-power problems. 
<br/><br/> Wilson's Children, October 2010.  Library Media Connection, March 2010.  Wilson's Children.  Library Media Connection. 
<br/><br/> Explores how dams help generate water power, early uses of water power, the benefits of water power, and other types of energy. 
<br/><br/> 5.2  Follett Library Resources.  3-6  Follett Library Resources. 
<br/><br/><label>ISBN: </label>9781410934482 (lib. bdg.) 9781410934567 (pbk.) 1410934489 141093456X 
<br/><br/><label>LCCN: </label>2008052653 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water-power--Juvenile literature.<br/>Electricity--Juvenile literature.<br/>Hydrodynamics--Juvenile literature.<br/>Water-power.<br/>Electricity.<br/>Hydrodynamics.<br/>Water power.<br/>Electricity.<br/>Hydrodynamics.<br/>Water power.<br/>Renewable energy sources.<br/>Dams.<br/>Electricity.<br/>Hydroelectric power plants.
<br/><br/><label>LC Class. No.: </label>TC147  / .G665 2009 
<br/><br/><label>Dewey Class. No.: </label>621.31/2134