Cosmic Science: Over 40 Gravity-Defying, Earth-Orbiting, Space-Cruising Activities for Kids

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Jim Wiese

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Einstein's Science Partie ...

Shar Levine , A ...

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Patricia A. Was ...

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Why Doesn't My Floppy Dis ...

Peter Cook

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Get Growing! Exciting Ind ...

Lois Walker

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What If Mind-Boggling Sci ...

Robert Ehrlich

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The New York Pu ...

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