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    WGBH
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    In this design challenge activity, learners build a car that uses a battery-operated motor to "drive" at least ten feet. Educators can use this activity as a fun, hands-on way to...

    $5 - $10 per student Ages 8 - 14 30 to 45 minutes
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    WGBH
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    In this design challenge activity, learners invent a device that will make their friends and family ask, "What's buzzing?" Learners design an alarm with an on/off switch that is...

    $5 - $10 per student Ages 8 - 14 10 to 30 minutes
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    Worcester Polytechnic Institute
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    Learners create an electrical-circuit maze out of wire, then try to pass a paperclip through the maze without touching the wire. If the paper clip touches the wire, it closes the circuit, causing a...

    $1 - $5 per group Ages 11 - 14 1 to 2 hours
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    WGBH
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    In this design challenge activity, learners design and build a circuit: an "electric highway" that connects a battery and buzzer at least three feet apart using four types of materials....

    $5 - $10 per student Ages 8 - 14 10 to 30 minutes
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    4-H
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    In this activity about electricity, learners identify closed and open circuits. First, learners examine and label diagrams of open and closed circuits. Then, learners build each of the circuits...

    $10 - $20 per group Ages 8 - 14 10 to 30 minutes