How dense are you / 
general editor: Margarette Thomas-Cochran. 
 - 25 pages :  illustrations (some colour) ;  25 cm. 
 - What a wonderful world!. Series 2.  book 5 .
 - What a wonderful world!.  Series 2. ;  book 5. .
<br/><br/> Includes index.  CIP changed: former main entry was Thomas-Cochran, Margarette.  Cover title.  For primary school students. 
<br/><br/><label>ISBN: </label>0582909678 9780582909670 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mass (Physics)--Juvenile literature<br/>Readers--Mass (Physics)<br/>Readers.
<br/><br/><label>Dewey Class. No.: </label>428.6