Ashbrook, Peggy. <br/><br/>
Science is simple :  over 250 activities for preschoolers / 
Peggy Aschbrook ; illustrations by Marie Ferrante- Doyle. 
 - Beltsville, Maryland :  Gryphon House,  c2003. 
 - 255 p. : ill. 
<br/><br/> Includes bibliographical references and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science--Study and teaching (early childhood)--Activity programs