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Can we Design New Machines? |
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What is the Displacement of Water? |
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$225.00 |
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What is a Magnet? |
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$225.00 |
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Does Soil Hold Water? |
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$225.00 |
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Why do Flowers Grow? |
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$225.00 |
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How are Light and Shadows Related? |
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$225.00 |
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How are Animals Sorted into Different Groups? |
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$225.00 |
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