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How do Electric Motors Work? |
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What is Buoyancy? |
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$225.00 |
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What is the function of Wheels, Pulleys, and Gears? |
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$225.00 |
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Why is it Cold Outside in the Winter? |
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$225.00 |
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Can we Build It with Sand or Soil? |
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What is Chemistry |
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$595.00 |
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What are Properties of Magnets? |
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$595.00 |
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Can we Dig for Fossils? |
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How Can We Protect Earth's Resources? |
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$595.00 |
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What are Chemicals? |
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$595.00 |
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What Makes a Ball Bounce |
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Where Does our Food Go? |
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$225.00 |
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