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    Astronomical Society of the Pacific
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    This fun and simple hands-on astronomy activity lets learners explore what happens when a star explodes. Participants imagine themselves inside a large star at the end of its life, just as it is...

    $5 - $10 per group Ages 8 - adult Under 5 minutes
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    Astronomical Society of the Pacific
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    This fun astronomy activity allows learners to experience finding stars in the night sky that will eventually go supernova. This activity is perfect for a star party outdoors. The PDF contains step...

    1 cent - $1 per group Ages 8 - adult 10 to 30 minutes
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    The Exploratorium
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    In this quick activity, learners drink Avogadro's number worth of molecules - 6.02x10^23 molecules! Learners measure 18 grams (or 18 ml) of water which is equivalent to 1 mole of water and...

    $1 - $5 per group Ages 11 - 18 5 to 10 minutes
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    NOAA
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    In this activity and/or demonstration, learners illustrate visually and physically that air has weight. Learners balance two equally-inflated balloons hanging from string on a yard stick. Learners...

    1 cent - $1 per group Ages 8 - 18 5 to 10 minutes
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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 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 investigate convection by using food coloring and water of different temperatures. Through this experiment, learners discover the effect of gravity, density, and...

    1 cent - $1 per group Ages 11 - 18 45 to 60 minutes
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    The Exploratorium
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    In this (edible) activity, learners balance chemical equations using different kinds and colors of candy that represent different atoms. Learners will work in pairs and explore conservation of...

    $5 - $10 per group Ages 11 - 18 45 to 60 minutes
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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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    The Exploratorium
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    In this activity, learners build a simple electrolysis device. Then learners use an indicating solution to visualize hydrogen and oxygen molecules in water.

    $5 - $10 per student Ages 11 - 18 45 to 60 minutes

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