Phelan, Glen, <br/><br/>
Forces and motion on earth / 
 Explore the world of motion At head of cover page :  Active read 
by Glen Phelan. 
 - 32 pages :  illustrations ;  20 cm 
<br/><br/> Includes index. 
<br/><br/> 1942 
<br/><br/><label>ISBN: </label>9789775277145 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Force and energy--Juvenile literature.<br/>Motion--Juvenile literature.<br/>Science--Study and teaching (Elementary)
<br/><br/><label>Dewey Class. No.: </label>531.11