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    The Exploratorium
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    In this activity, learners get hands-on experience with ratios and scaling while making their own jewelry out of recycled plastic containers. Learners will practice measuring area and volume as...

    free Ages 11 - 14 45 to 60 minutes
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    Twin Cities Public Television
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    In this technology activity, learners build an "alarming" doormat to keep siblings out of their rooms. Use this activity to teach learners about circuits, switches, and sensors.

    $5 - $10 per group Ages 8 - 14 45 to 60 minutes
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    IEEE
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    In this activity, learners explore how voting systems have changed with engineering advances over time. Learners work in teams to design their own voting system using easy to find materials. Teams...

    $10 - $20 per group Ages 8 - 18 1 to 2 hours
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    IEEE
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    In this activity, learners explore how wind energy can be generated on both a large and small scale. Learners design and build a working windmill out of everyday products and learn about...

    $10 - $20 per group Ages 8 - 18 1 to 2 hours
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    WGBH
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    In this design challenge activity, learners invent a pinball-like game where a kick stick hits a ping pong ball into a target that buzzes. This detailed guide includes step-by-step instructions on...

    $10 - $20 per student Ages 8 - 14 45 to 60 minutes
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    WGBH
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    Make your own "Dance Dance Revolution" dance pad! In this design challenge activity, learners work in teams to build a dance pad that lets you use your feet to sound a buzzer or flash a...

    $10 - $20 per group Ages 8 - 14 45 to 60 minutes
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    New Jersey Department of Education
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    In this activity, learners investigate the different salinity levels of oceans, rivers and estuaries. Learners then use experimentation to determine which sample is the best model of each type of...

    Over $20 per group Ages 8 - adult 1 to 7 days
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    Twin Cities Public Television
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    In this technology activity, learners light up the room with electrifying play dough creations. Learners use conductive and insulating homemade play dough to build simple circuits. Learners then...

    Over $20 per group Ages 8 - 14 1 to 2 hours
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    University of Utah
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    What is the optimal environment for hatching brine shrimp? Using a scaffold, learners design and conduct experiments testing the effect of a single abiotic factor on brine shrimp cyst hatch rate....

    Over $20 per group Ages 11 - 18 1 to 7 days
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    IEEE
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    In this activity, learners explore how anemometers work to record wind speeds and how the equipment has undergone engineering adaptations over time. Learners work in teams of "engineers"...

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

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