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    Twin Cities Public Television
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    This activity is a full inquiry investigation into g-force and acceleration. Groups of learners will construct their own accelerometers. Then, with permission from their local amusement park, they...

    $5 - $10 per student Ages 8 - 14 1 to 7 days
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    Lawrence Hall of Science
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    In this outdoor activity, learners race small boats, made of cork, balsa wood, popsicle sticks etc., to investigate the rate and direction of currents in a stream or creek. Learners will examine...

    $10 - $20 per group Ages 8 - 18 45 to 60 minutes
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    Lawrence Hall of Science
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    This assortment of mathematical games can be played while traveling. Suggestions include: estimate time until arrival and use a watch to track it; talk about turns and directions; count traffic...

    free Ages 4 - 14 10 to 30 minutes