Infinity's big book of science projects including environmental science. 

 - First edition. 
 - 256 p. :  ill. ;  24 cm. 
<br/><br/>  
<br/><br/><label>ISBN: </label>8179292169 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science projects in schools.
<br/><br/><label>Dewey Class. No.: </label>507.8/In32