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    The Exploratorium
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    With little more than a flashlight, a straw, and a plastic lid, make an observatory so you can see the amazing colors in bubbles. Learn about how light travels in waves and how the frequency of a...

    $1 - $5 per student Ages 4 - 11 5 to 10 minutes
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    The Exploratorium
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    An ordinary camera has a lens that makes an image on film. In a pinhole camera, a small hole replaces the lens. This activity provides instructions for recycling a potato chip can to make your own...

    $1 - $5 per student Ages 6 - 18 10 to 30 minutes
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    The Exploratorium
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    In this activity, learners build bridges and cantilevers in a series of "building out" challenges with straws and pins. In doing so, learners will experience many of the basic physics and...

    $1 - $5 per group Ages 4 - 14 1 to 2 hours
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    The Exploratorium
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    This activity provides instructions for building a mirrored tube--a smaller and simpler version of a submarine's periscope--that lets you see around corners and over walls. Get a hands-on...

    $1 - $5 per student Ages 6 - 14 10 to 30 minutes
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    The Exploratorium
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    This activity provides instructions for using cornstarch and water to make an ooze which has the properties of both a solid and liquid.

    $1 - $5 per student Ages 4 - 11 10 to 30 minutes
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    The Exploratorium
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    In this activity, learners repeat patterns in two and three dimensions to create tessellations. This activity combines the creativity of an art project with the challenge of solving a puzzle. This...

    $1 - $5 per group Ages 4 - 8 45 to 60 minutes
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    The Exploratorium
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    Did you know that using a lens one can bend light to make pictures of the world? It's true! Using the lens from a disposable camera or a magnifying glass, learners will make a picture of a...

    $1 - $5 per student Ages 4 - 11 10 to 30 minutes
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    The Exploratorium
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    In this activity, learners make bridges using an oil-based modeling clay (plasticene). The instructions include discussion questions for both before and after bridge building. Key learning ideas...

    $1 - $5 per group Ages 4 - 11 30 to 45 minutes
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    The Exploratorium
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    Focus sound through a balloon! In this Exploratorium activity, you'll use dry ice to create a balloon that's a sound lens.

    $1 - $5 per student Ages 6 - adult 5 to 10 minutes