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SCIENTIFIC METHOD INVESTIGATION: A STEP-BY-STEP GUIDE FOR MIDDLE-SCHOOL STUDENTS by CAMERON, SCHYRLET (Paperback - 0) ISBN: 9781580375214 Subject: CHILDREN Publisher: MARK TWAIN MEDIA |
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SIMPLE MACHINES by BEAVER, JOHN B (Paperback - 2010) ISBN: 9781580375238 Subject: CHILDREN Publisher: MARK TWAIN MEDIA |
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