Adler, Irving <br/><br/>
Shadows /  
By Iving and Ruth Adler  
 - New York :   The John Day Company ,   1961. 
 - 48 pages :   color illustrations ;  21 cm .  
 - The reason Why Series  .
<br/><br/>M <br/> 
<br/><br/> A simple explanation of what shadows are, how and when they exist, and what they tell us about the size and shape of objects around us 
<br/><br/> 550 <br/>  Lexile estimate <br/>  M <br/>  Raz-Plus <br/> 
<br/><br/><label>LC Class. No.: </label>PZ7