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How can we Design a Car to go Faster? |
$225.00 |
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$225.00 |
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What are Actions & Reactions? |
$225.00 |
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$225.00 |
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What is a Computer? |
$225.00 |
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$225.00 |
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How Can We Protect Earth's Resources? |
$595.00 |
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$595.00 |
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Can we Build a House? |
$225.00 |
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$225.00 |
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What are the Primary Colors? |
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$595.00 |
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