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How can we Design a Car to go Farther? |
$225.00 |
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$225.00 |
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How do I Invent Something? |
$225.00 |
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$225.00 |
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Rocks & Minerals |
$595.00 |
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$595.00 |
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What is the Science of Static Electricity? |
$225.00 |
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$225.00 |
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How do We Separate Solutions? |
$225.00 |
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$225.00 |
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How do Organisms Interact? |
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$225.00 |
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How Do Straws Work? |
$225.00 |
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$225.00 |
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What are the Parts of a Plant? |
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$225.00 |
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