Doris, Ellen. <br/><br/>
Doing what scientists do :  children learn to investigate their world / 
Ellen Doris. 
 - Portsmouth, N.H. :  Heinemann,  c1991. 
 - xii, 194 p. :  ill. ;  26 cm. 
<br/><br/>Includes bibliographical references (p. 171-190). 
<br/><br/><label>ISBN: </label>0435083090 
<br/><br/><label>LCCN: </label>90048126 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science--Study and teaching (Elementary)--United States.
<br/><br/><label>LC Class. No.: </label>LB 1585.3  / .D67 1991