River Cutters
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Schoolyard Ecology
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Architecture of Reform
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Quadice: A Challenging Mathematics Game for Grades 4-"8
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Convection: A Current Event
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Color Analyzers (Teacher's Guide)
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Mapping Animal Movements (Old Edition)
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Vitamin C Testing
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Vitamin C Testing (Old Edition)
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Solids, Liquids, and Gases: A School Assembly Program
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Mapping Animal Movements: Grades 5-"9
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