Riley, Peter D <br/><br/>
Checkpoint Science 2 (New ed.) 
by Peter D. Riley 
 - New ed. 
 - London:  Hodder Education  2005 
 - viii, 208p.: ill. 
 - Cambridge checkpoint .
<br/><br/><label>ISBN: </label>9781444143751 
<br/><br/><label>Subjects--Topical Terms: </label><br/>SCIENCE--JUVENILE LITERATURE
<br/><br/><label>LC Class. No.: </label>Q 163 Ril