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    The Exploratorium
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    In this activity, learners build a recording timer made from simple materials (e.g., small dc motor, sharpie pen, craft sticks, adding machine paper tape, etc.). The device produces a record of...

    Over $20 per group Ages 14 - 18 1 to 2 hours
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    NASA
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    In this robotics activity, learners drive a remote-controlled car through a course to learn the challenges faced while trying to operate a planetary rover. They use measurement, geometry and...

    1 cent - $1 per group Ages 8 - 18 1 to 2 hours
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    The Exploratorium
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    In this activity, learners make a simple spring-like scale using a rubber band instead of a spring, and calibrate the scale in newtons (N). Learners will gain an understanding of and familiarity...

    $1 - $5 per student Ages 11 - 18 30 to 45 minutes
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    IEEE
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    In this activity, learners explore how spring scales work and how they are used for non-exact weight measurement. Learners work in teams to develop their own working spring scale out of ordinary...

    $10 - $20 per group Ages 8 - 18 1 to 2 hours