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    The Exploratorium
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    In this activity, learners use a laser pointer and two small rotating mirrors to create a variety of fascinating patterns, which can be easily and dramatically projected on a wall or screen. In...

    Over $20 per group Ages 11 - 18 1 to 2 hours
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    The Exploratorium
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    Make your own speaker with a magnet, wire, and paper cup! If you have a radio with a headphone plug and an old pair of headphones, this is a great tinkering activity.

    $1 - $5 per student Ages 8 - adult 10 to 30 minutes
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    The Exploratorium
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    This is an activity that demonstrates how batteries work using simple household materials. Learners use a pickle, aluminum foil and a pencil to create an electrical circuit that powers a buzzer....

    $5 - $10 per group Ages 11 - 18 30 to 45 minutes
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    The Exploratorium
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    Construct a simple battery that's able to power a small light or motor out of foil, salt water, and charcoal. A helpful video, produced by the Exploratorium, guides you along on this activity.

    $1 - $5 per student Ages 8 - 18 10 to 30 minutes
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    The Exploratorium
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    In this activity, learners simulate the process of DNA fingerprinting by using electricity to separate colored dyes. Learners use simple materials to assemble a comb (electrophoresis chamber) to...

    Over $20 per group Ages 11 - 18 1 to 2 hours
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    The Exploratorium
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    In this activity, learners create a tiny electric, motorized dancer. Learners use the interactions of magnetism and electric current to make a wire spin, while displaying the Lorentz Force in...

    $1 - $5 per student Ages 8 - 18 30 to 45 minutes
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    The Exploratorium
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    Make your own simple speaker so you can listen to your favorite radio station. Just wind a coil, attach it to a piece of cardboard or Styrofoam, hold a magnet nearby, and listen. This activity...

    $1 - $5 per student Ages 8 - 18 30 to 45 minutes
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    The Exploratorium
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    In this demonstration, cook a cake using the heat produced when the cake batter conducts an electric current. Because of safety concerns, this activity should be conducted as a demonstration only...

    $10 - $20 per group Ages 8 - 18 30 to 45 minutes
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    The Exploratorium
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    In this electrochemistry activity, learners will explore two examples of electroplating. In Part 1, zinc from a galvanized nail (an iron nail which has been coated with zinc by dipping it in molten...

    $10 - $20 per group Ages 14 - 18 1 to 2 hours
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    The Exploratorium
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    In this activity, learners build a simple qualitative conductivity tester with a battery, bulb and foil. Then learners use the device to test if a solution, a series of solutions, and a solution...

    $5 - $10 per student Ages 11 - 18 1 to 2 hours

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