More Winning Science Fair Projects (Scientific American Winning Science Fair Projects)
by Bob Friedhoffer
ISBN 13: 9780791090572
Format: Hardcover (48 pages) Publisher: Chelsea House Publishers Published: 15 Nov 2006
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Scientific American, Winning Science Fair Projects, Grades 5-7
by Bob Friedhoffer,Earnie Colon
ISBN 13: 9781596875289
Format: Illustrated (50 pages) Publisher: iBooks Published: 01 Dec 2017
Scientific American, Simple Science Fair Projects, Grades 3-5
by Bob Friedhoffer,Ernie Colon
ISBN 13: 9781596875753
Format: Illustrated (50 pages) Publisher: iBooks Published: 03 Jul 2018