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Can we Build It with Sand or Soil? |
$225.00 |
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$225.00 |
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What is the Bernoulli Effect? |
$225.00 |
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$225.00 |
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What is Velcro? |
$225.00 |
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$225.00 |
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What Properties are used to Identify Metals? |
$175.00 |
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$175.00 |
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How do Molecules Mix? |
$225.00 |
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$225.00 |
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What is the Relationship Between Smell and Taste? |
$225.00 |
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$225.00 |
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What are Engineers? |
$595.00 |
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$595.00 |
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