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    The Exploratorium
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    In this activity, learners follow a recipe to make hollandaise sauce. Learners discover how cooks use egg yolks to blend oil and water together into a smooth mix. In chemistry, this mixture is...

    $1 - $5 per group Ages 6 - 14 5 to 10 minutes
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    The Exploratorium
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    In this activity, learners use simple materials to create giant bubbles. Learners will explore what gives bubbles their shape, what makes them break or last, what causes the colors and patterns in...

    $1 - $5 per group Ages 6 - 14 10 to 30 minutes
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    The Exploratorium
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    In this activity, learners touch supercooled water drops with an ice crystal and trigger the water drops to freeze instantly. Learners discover that this process is used during candy making, when a...

    $1 - $5 per student Ages 6 - 14 5 to 10 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
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    The Exploratorium
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    In this activity, learners observe as soap bubbles float on a cushion of carbon dioxide gas. Learners blow bubbles into an aquarium filled with a slab of dry ice. Learners will be amazed as the...

    $1 - $5 per group Ages 6 - 14 10 to 30 minutes
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    The Exploratorium
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    In this activity, learners create a tornado in a bottle to observe a spiraling, funnel-shaped vortex. A simple connector device allows water to drain from a 2-liter bottle into a second bottle....

    $1 - $5 per student Ages 4 - 14 10 to 30 minutes
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    The Exploratorium
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    In this activity, learners explore how ordinary marshmallows expand when heated in a microwave. Learners heat two marshmallows in the microwave for about 20 seconds and then examine the texture and...

    $1 - $5 per group Ages 6 - 14 Under 5 minutes
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    The Exploratorium
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    This activity shows you how to make amazing crystal spikes using Epsom salt and the sun. When Epsom salt is dissolved in water and placed in a container in the sun, the water evaporates, leaving...

    $1 - $5 per student Ages 6 - 11 1 to 2 hours
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    The Exploratorium
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    With a magnet, iron fillings, and a bottle, you can create a cool demonstration about magnetic lines of force: the fillings will arrange themselves within the magnet's magnetic field.

    $1 - $5 per student Ages 6 - 18 Under 5 minutes
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    The Exploratorium
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    Like water drops in falling rain, a CD separates white light into all the colors that make it up. The colors you can see reflecting from a CD are interference colors, like the shifting colors you...

    $1 - $5 per student Ages 6 - 14 5 to 10 minutes

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