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    Biotechnology and Biological Sciences Research Council
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    In this activity (p.8-9 of PDF), learners investigate the evolution of wheat by conducting sedimentation tests on different flours. The evolution of wheat from wild grasses demonstrates the...

    $5 - $10 per group Ages 8 - adult 10 to 30 minutes
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    Institute of Physics
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    In this physics demonstration, learners will be surprised when a lemon slice appears to magically levitate within a pint glass. This is a simple trick that involves several complex physical...

    1 cent - $1 per group Ages 8 - adult Under 5 minutes
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    The Exploratorium
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    In this hands-on activity, learners make the world's simplest Cartesian diver, using only a plastic bottle, some water, and a condiment packet. A Cartesian diver is a classic science...

    free Ages 6 - adult 5 to 10 minutes
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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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    Institute of Physics
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    In this physics demonstration, learners are challenged to break a raw egg just by squeezing it. Learners will be shocked by their inability to complete the deceivingly simple challenge. Use this...

    1 cent - $1 per group Ages 4 - adult Under 5 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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    Biotechnology and Biological Sciences Research Council
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    In this activity (p.6-7 of PDF), learners investigate the evolution of wheat by creating dough from different flours, observing the samples of dough as they rise, and then baking the dough. The...

    $10 - $20 per group Ages 8 - adult 1 to 2 hours
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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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    • Oregon Museum of Science and Industry (remove)
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