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What are the Physical Changes of Matter? |
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What Shape Makes the Best Wheel? |
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$225.00 |
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What are the Properties of Magnets? |
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Can we Make our Own Goop? |
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What are Gases? |
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How do we Make Crystals? |
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How do we Magnify Cells? |
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$175.00 |
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What Makes the Changing Seasons? |
$695.00 |
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$695.00 |
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Fun With Water and Bubbles |
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$12.95 |
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