VanCleave, Janice,  <br/><br/>
Winning experiments for science fairs and extra credit 

 - vi, 234 pages :   illustrations ;   23 cm 
 - Janice VanCleave's A+ projects in earth science .
 - Janice VanCleave's A+ projects in earth science .
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>0471177709 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Earth sciences - Experiments - Juvenile literature ; Science projects - Juvenile literature
<br/><br/><label>Dewey Class. No.: </label>550.78