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× |
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Make Your Own Kaleidoscope |
$7.95 |
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$7.95 |
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× |
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What is Innovative Engineering? |
$595.00 |
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$595.00 |
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× |
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Building Bridges and the Iterative Design Cycle |
$695.00 |
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$695.00 |
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× |
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What are Teeth? |
$225.00 |
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$225.00 |
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How do Animals live on the Seashore? |
$225.00 |
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$225.00 |
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What is Air? |
$225.00 |
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$225.00 |
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