Challand, Helen J, <br/><br/>
Activities in the physical sciences / 
by Helen J. Challand ; illustrations by Linda Hoffman Kimball. 
 - 93 páginas :  ilustraciones 
<br/><br/><label>ISBN: </label>0516005049 9780516005041 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Física--Experimentos.<br/>Química--Experimentos.
<br/><br/><label>Dewey Class. No.: </label>500.2078  / C437a 1984