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    Perkins School for the Blind
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    This activity was designed for blind learners, but all types of learners can explore the process of extrusion used to produce pipes and wires in industry. Tooth paste and frostings are examples of...

    $5 - $10 per group Ages 8 - 18 10 to 30 minutes
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    Perkins School for the Blind
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    This activity was designed for blind learners, but all types of learners can explore the process used to cast and mold molten metal, glass, and plastics. Using gelatin, the learner will work with a...

    $10 - $20 per group Ages 8 - 18 4 to 24 hours

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