Cole, Joanna. <br/><br/>
The Magic school bus at the waterworks  
by Joanna Cole ; illustrated by Bruce Degen 
 - New York :  Scholastic Inc.,  c1986 
 - 39 p. :  col. ill. ;  20 x 24 cm 
<br/><br/> When Ms. Frizzle, the strangest teacher in school, takes her class on a field trip to the waterworks, everyone ends up experiencing the water purification system from the inside 
<br/><br/> AD 660  Lexile. 
<br/><br/><label>ISBN: </label>0590403605  2.50 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water treatment plants--Fiction.<br/>School field trips--Fiction.
<br/><br/><label>Dewey Class. No.: </label>[E]