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    Twin Cities Public Television
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    This activity (on page 2 of the PDF) is a full inquiry-based challenge related to motion and design optimization. Groups of learners will use construction paper to build a model bobsled run for a...

    $1 - $5 per group Ages 8 - 14 1 to 2 hours
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    Twin Cities Public Television
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    This activity (on page 3 of the PDF) is a full inquiry investigation into design optimization. Groups of learners will construct a basic sail car out of a fast-food sandwich container, some wooden...

    $5 - $10 per group Ages 8 - 14 2 to 4 hours
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    Twin Cities Public Television
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    In this quick activity (located on page 2 of the PDF), learners will see the effects of convection and understand what makes hot air balloons rise. Learners will fill a bottle with hot water...

    1 cent - $1 per group Ages 8 - 14 10 to 30 minutes

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