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    Twin Cities Public Television
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    In this activity (page 1 of PDF under SciGirls Activity: Forecasting), learners will construct an air cannon by cutting a hole in the bottom of a bucket and stretching a garbage bag over the other...

    $1 - $5 per group Ages 8 - 14 30 to 45 minutes
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    Twin Cities Public Television
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    This activity (located on page 3 of the PDF under GPS: Lava Flow Activity) is a full inquiry investigation into the relationship between an object’s mass and the distance it is thrown by a catapult...

    $5 - $10 per group Ages 8 - 14 1 to 2 hours

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