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What is a Changing State of Matter? |
$225.00 |
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$225.00 |
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What is Innovative Engineering? |
$595.00 |
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$595.00 |
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What Role does Our Sun Play in Our Solar System? |
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$225.00 |
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Can we Build a Rocket? |
$225.00 |
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$225.00 |
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What is Land? |
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$225.00 |
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How do Colors Mix? |
$225.00 |
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$225.00 |
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