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    The Exploratorium
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    In this calculus activity, learners use a classic problem of geometrical probability to find an important mathematical constant (pi). Learners explore Buffon’s needle problem (which asks the...

    $1 - $5 per group Ages 14 - 18 10 to 30 minutes
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    The Exploratorium
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    In this demonstration, learners explore a variation of a Foucault pendulum, but upside down. This resource contains instructions on how to construct the device (the predecessor to the Foucault...

    $1 - $5 per group Ages 11 - 18 10 to 30 minutes
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    The Exploratorium
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    In this activity, learners use geometry to predict the shape of carbon. Learners twist and attach chenille stem pieces that represent bonds between different carbon atoms. Information about...

    $1 - $5 per group Ages 11 - 18 10 to 30 minutes
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    The Exploratorium
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    In this activity, learners conduct an experiment to find out if steel wool will weigh more or less when it is burned. Learners will explore the effects of oxidation and rusting on the steel wool....

    $1 - $5 per student Ages 11 - 18 10 to 30 minutes
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    The Exploratorium
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    In this group activity, learners see and hear the speed of sound. A learner designated the "gonger" hits a gong, once every second, as the rest of the group watches and listens from a...

    $1 - $5 per group Ages 11 - 18 10 to 30 minutes
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    The Exploratorium
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    In this two-part activity, learners use everyday materials to visualize one mole of gas or 22.4 liters of gas. The first activity involves sublimating dry ice in large garbage bag. The second...

    $1 - $5 per group Ages 11 - 18 10 to 30 minutes
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    The Exploratorium
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    In this activity, learners construct a three-dimensional ambiguous cube to explore visual illusions and how our brains interpret or misinterpret information. Learners will be surprised to see what...

    $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 create a simple “top” from a CD, marble and bottle cap, and use it as a spinning platform for a variety of illusion-generating patterns. Learners will use Benham's...

    $1 - $5 per student Ages 8 - 18 10 to 30 minutes
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    The Exploratorium
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    Fat is a very important component in our diet. It's the most efficient source of energy in our bodies, and plays an important role in the flavor of foods. Here's an experiment you can try...

    $1 - $5 per group Ages 11 - 18 10 to 30 minutes
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    The Exploratorium
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    This trick from Exploratorium physicist Paul Doherty lets you add together the bounces of two balls and send one ball flying. When we tried this trick on the Exploratorium's exhibit floor, we...

    $1 - $5 per group Ages 11 - adult 10 to 30 minutes