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    The Exploratorium
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    With three cans and some tape, make a drum that you bonk down on any surface to produce a variety of sounds. This activity also teaches you about pitch, vibration, and frequency. All over the world...

    1 cent - $1 per student Ages 6 - 11 5 to 10 minutes
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    PBS
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    In this math lesson, learners identify the likelihood of an event by using a walk-on probability scale. Learners are encouraged to evaluate the chance of given events occurring and assigning the...

    $1 - $5 per group Ages 8 - 11 45 to 60 minutes
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    The Exploratorium
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    In this physics activity, learners assemble and/or investigate a pendulum "snake." Several large steel hex-nuts are suspended on strings of successively increasing length to form a series...

    $10 - $20 per group Ages 8 - 18
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    BioEd
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    This activity generates learner excitement about light through the creation of a room-sized rainbow. Learners also make their own "rainbow" drawings that incorporate the sequence of...

    1 cent - $1 per group Ages 8 - 14 10 to 30 minutes
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    PBS
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    In this math lesson, learners extend their understanding of basic probability concepts as they learn to name all of the possible outcomes of an event as well as ways to express the likelihood of...

    $1 - $5 per group Ages 8 - 11 45 to 60 minutes
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    Science Museum of Minnesota
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    In this online activity, learners test their ability to hear different frequencies and compare their frequency range with the frequency range of other animals and insects. Learners can record their...

    free Ages 4 - 11 5 to 10 minutes
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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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    PBS
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    In this math lesson, learners measure, predict and determine the frequency of an event as it relates to how close Whirlybirds land to a target. In this simulation of a parachute jump competition,...

    1 cent - $1 per group Ages 8 - 11 45 to 60 minutes
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    The Exploratorium
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    In this optics activity, learners explore why the sky is blue and the sunset is red, using a simple setup comprising a transparent plastic box, water, and powdered milk. Learners use a flashlight...

    $1 - $5 per group Ages 8 - 14 30 to 45 minutes
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    WGBH
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    String Thing is an interactive online game in which learners change a virtual string's tension, length, and gauge to create different musical pitches. Educators can use this game as an...

    free Ages 8 - 14 10 to 30 minutes

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