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    Oregon Museum of Science and Industry
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    Learners compare the properties of two balls that appear identical. One ball bounces, while the other ball "thuds." The “bounce” ball is made of the polymer polybutadiene (-C4H4-). The...

    Over $20 per group Ages 6 - adult Under 5 minutes
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    COSI
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    In this chemistry activity (page 1 of the PDF), learners will observe a physical change. By making their own sugar or salt crystals, learners will identify physical changes and see how they can be...

    $1 - $5 per student Ages 6 - 14 1 to 4 weeks
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    NISE Network
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    In this activity/demo, learners discover how liquid nitrogen cools a creamy mixture at such a rapid rate that it precipitates super fine grained (nano) ice cream. This is a fun (and tasty!) way for...

    $5 - $10 per group Ages 4 - adult 10 to 30 minutes
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    Mount Holyoke College
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    In this kitchen chemistry activity, learners explore the chemistry of crystals by making sugar crystals, consider a common chemical reaction type responsible for the rising of muffins and cake in...

    $5 - $10 per group Ages 8 - 14 1 to 7 days
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    Oregon Museum of Science and Industry
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    This is written as a display, but can easily be adapted to a hands-on activity. Learners observe and shake containers of shiny liquids. Inside the containers are mixtures of water and some small...

    $5 - $10 per group Ages 4 - 14 5 to 10 minutes
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    Oregon Museum of Science and Industry
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    Learners experiment with a commercially available liquid-crystal coaster. They warm the material with their hands for varying lengths of time and observe the changing colors that result. As the...

    $5 - $10 per group Ages 4 - 14 5 to 10 minutes
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    Children's Museum of Indianapolis
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    In this archaeology activity, learners make observations and conduct an experiment to demonstrate the effect saltwater has on artifacts. Use this activity to introduce learners to the process of...

    $10 - $20 per group Ages 8 - 14 1 to 7 days
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    University of Illinois Urbana-Champaign
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    In this activity, learners investigate the basic crystal structures that metal atoms form. Learners construct models of crystals using Styrofoam balls and learn about hexagonal close packing (HCP)...

    $5 - $10 per student Ages 14 - adult 45 to 60 minutes
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    New York Hall of Science
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    In this activity, learners copper-plate metal objects by placing them in a jar with pennies and vinegar. Use this activity to introduce learners to acids, metals, and chemical reactions. This...

    1 cent - $1 per student Ages 6 - 11 1 to 2 hours
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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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