Iowa Science Teachers Journal | Vol 21 | No. 2
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Editors

Editor
Carl W. Bollwinkel
Managing Editor
Robert Hanson
Copy Editor
Marjorie Vargas
Assistant Editors
Paul Joslin, Science Education
Gary Downs, Elementary Science
Steve Ziser, Biology
Don E. Murphy, Chemistry
Darrel Hoff, Earth Science
Timothy M. Cooney, Physics