Baldini, Rudolph A.,  1930- <br/><br/>
Student science activities for grades 6-9 / 
by Rudolph A. Baldini ; Photography by J. Rutherford Ferrill. 
 - West Nyack, N.Y. :  Parker,  1973. 
 - 208 p. :  ill. ;  24 cm. 
<br/><br/>Bibliography: p. 200-202. 
<br/><br/><label>ISBN: </label>0138558175 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science--Study and teaching (Elementary)<br/>Science--Experiments<br/>Project method in teaching