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    Institute of Physics
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    In this demonstration, learners observe the effects of air pressure. They will watch as marshmallows inside a bottle expand as a vacuum pump removes air from the bottle. The marshmallows will...

    $1 - $5 per group Ages 4 - adult Under 5 minutes
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    Science Museum of Minnesota
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    DNA is the thread of life. Encoded in its genetic sequence is the information that makes each of us unique. This activity allows you to see long, stringy strands of DNA extracted from wheat germ....

    $1 - $5 per group Ages 8 - adult 10 to 30 minutes
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    Lawrence Hall of Science
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    In this activity, learners explore a bucket of sand and beach objects. First they sort items using observable characteristics, then they turn hard candy into "candy sand" to model where...

    $1 - $5 per group Ages 4 - adult 10 to 30 minutes
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    University of Southern Mississippi
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    In this activity, learners make prisms from gelatin. Learners then shine light through the prisms and discover what happens. This activity introduces learners to the idea of refraction. If learners...

    $1 - $5 per student Ages 8 - adult 10 to 30 minutes
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    Institute of Physics
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    This is a highly visual demonstration that illustrates both the effects of density and chemical reactions. Like a density column, volcano eruption, and Alka-seltzer reaction all in one, learners...

    $1 - $5 per group Ages 4 - adult 5 to 10 minutes
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    The Exploratorium
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    This is an activity about a very important ingredient in most baked goods - gluten! Why is gluten so important? Without it, there would be nothing to hold the gas that makes bread rise. Learners...

    $1 - $5 per group Ages 11 - adult 45 to 60 minutes
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    Astronomical Society of the Pacific
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    This simple and engaging astronomy activity explains nuclear fusion and how radiation is generated by stars, using marshmallows as a model. Learners will explore what cosmic radiation is and where...

    $1 - $5 per group Ages 8 - adult 5 to 10 minutes
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    Institute of Physics
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    In this physics demonstration, learners are challenged to insert a straw the furthest into a potato. After learners explore different techniques, the demonstrator can show them how to hold the...

    $1 - $5 per group Ages 4 - adult 5 to 10 minutes
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    Oregon Museum of Science and Industry
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    Learners combine hydrogen peroxide with three different forms of potato: raw chunks, ground chunks, and boiled chunks. They observe the difference in bubbling of the three forms, and inferring the...

    $1 - $5 per group Ages 11 - adult 5 to 10 minutes
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    Institute of Physics
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    In this demonstration, adult learners create a lava lamp using beer and nuts! Use this pub-themed activity to demonstrate the effects of buoyancy and bubbles. For younger audiences, substitute any...

    $1 - $5 per group Ages 4 - adult Under 5 minutes

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