Matter and energy  

 - Chigaco  Word Book, Icn.  [c2014] 
 - 245 pages.;  coloured pictures:  28 cm 
 - .
<br/><br/> Juvenile 
<br/><br/><label>ISBN: </label>9780716675303 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physics Enclyclopedia--Juvenile