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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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    The Exploratorium
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    In this activity, learners make a scale model of an atom to see how big or how small an atom is compared to its nucleus. Learners will realize that most of matter is just empty space! Learners will...

    free Ages 14 - 18 30 to 45 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 activity, learners use colored candy to represent subatomic particles and make a model of an atom (Bohr model). This activity will help familiarize learners with subatomic components of an...

    $1 - $5 per student Ages 14 - 18 30 to 45 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 balance chemical equations and discover the law of conservation of mass. Learners use coins to model molecules to balance the equations.

    free Ages 14 - 18 10 to 30 minutes
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    Oregon Museum of Science and Industry
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    As a group, learners investigate three packages which are all the same size and shape, but have different contents. One is filled with foam, one is filled with wood, and one is filled with metal....

    $1 - $5 per group Ages 4 - 11 10 to 30 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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