Mackensen, Manfred von, <br/><br/>
Sound, light, heat, electricity, magnetism & electromagnetism :  mechanics, hydraulics, and aeromechanics as subjects in an introductory physics, 6th through 8th grade / 
 Sound, light, heat, electricity, magnetism and electromagnetism  Sound, light, heat 
by Manfred von Mackensen ; translated and edited by John H. Petering. 
 - 3 volumes :  illustrations ;  28 cm. 
 - A phenomena-based physics .
 - Phenomena-based physics. .
<br/><br/> German ed. published in 1987. 
<br/><br/>Includes bibliographical references. 
<br/><br/> Vol.1. Grade 6--- v.2. Grade 7 -- v. 3. Grade 8. 
<br/><br/><label>ISBN: </label>0962397865 9780962397868 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physics--Study and teaching (Elementary)--Handbooks, manuals, etc.<br/>Phenomenological theory (Physics)<br/>Physical sciences--Study and teaching (Elementary)--Handbooks, manuals, etc.<br/>Waldorf method of education
<br/><br/><label>Dewey Class. No.: </label>371.391