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    Twin Cities Public Television
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    In this engineering activity, learners examine bicycle mechanics and gear ratios. Learners determine which gears will help them bike a set course in the shortest amount of time.

    1 cent - $1 per group Ages 8 - 14 1 to 2 hours
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    Twin Cities Public Television
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    In this activity, learners conduct the "Stroop Effect" test and explore what happens when they try to complete two simple tasks at the same time. Use this activity to explain how the...

    1 cent - $1 per group Ages 8 - 14 30 to 45 minutes

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