Cleaning water / 
a project of the American Chemical Society. 
 - Teacher version. 
 - Dubuque, Iowa :  Kendall/Hunt,  c1996. 
 - iv, 32 p. :  ill., maps ;  28 cm. 
 - Facets = Foundations and challenges to encourage technology-based science. Series 2 ;  module 2.6 .
 - FACETS collection.  Series 1;  module 2.6. .
<br/><br/><label>ISBN: </label>0787214485 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Fresh water.<br/>Water-supply.<br/>Water--Pollution--Study and teaching (Elementary)<br/>Science--Study and teaching (Elementary)