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All Kinds of Structures
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| $11.99 |
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Characteristics of Flight, Grades 4-6
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| $13.99 |
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Energy
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| $12.99 |
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Energy: The World and You
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| $10.99 |
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Force and Motion, Grades 1-3
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| $13.99 |
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Force and Motion, Grades 4-6
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| $13.99 |
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Light and Sound
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| $12.99 |
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Magnets
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| $12.99 |
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Matter & Materials, Grades 1-3
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| $10.99 |
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Matter & Materials, Grades 4-6
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| $10.99 |
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Matter and Materials
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| $12.99 |
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Simple Machines, Grades 1-3
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| $13.99 |
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Simple Machines, Grades 4-6
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| $13.99 |
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Stable Structures & Mechanisms
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| $11.99 |
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Structures, Mechanisms & Motion
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| $11.99 |
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Taking Off With Flight, Grades 1-3
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| $13.99 |
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