Peter Rillero

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Super science fair projects (Handy homework helper)
Peter-rillero

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� 4.69

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1001 Ways to Explore Science and Nature

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� 3.41

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Time for Learning Science
Rillero, Peter

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� 4.37

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Totally Gross Chemistry

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� 6.14

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Electronic Time for Learning : The Human Body

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� 7.56

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