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    The Exploratorium
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    In this hands-on and feet-on excursion, learners take a science walk to visualize the planet's immense size and numerous structures, without the usual scale and ratio dimensions found in most...

    1 cent - $1 per group Ages 11 - 18 45 to 60 minutes
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    Integrated Teaching and Learning Program, College of Engineering, University of Colorado at Boulder
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    Learners build a simple aneroid barometer to learn about changes in barometric pressure and weather forecasting. They observe their barometer and record data over a period of days. This activity...

    $1 - $5 per student Ages 8 - 14 1 to 4 weeks
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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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    The Exploratorium
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    In this activity, learners explore how changes in fluid pressure affect the buoyancy of a Cartesian diver inside a plastic soda bottle. This guide includes instructions for building a diver out of...

    $1 - $5 per student Ages 8 - 14 10 to 30 minutes
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    COSI
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    In this physics activity (page 3 of the PDF), learners will see firsthand that air takes up space and has pressure by attempting to inflate a balloon inside of a bottle. Though this activity was...

    1 cent - $1 per student Ages 6 - 11 5 to 10 minutes
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    The Exploratorium
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    In this activity, learners explore Boyle's Law and discover that water will boil at room temperature if its pressure is lowered. Learners conduct an experiment using a plastic syringe and...

    1 cent - $1 per student Ages 11 - 18 10 to 30 minutes
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    The Exploratorium
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    In this demonstration/activity, learners observe as a regular size marshmallow is blown through a tube made from a manila file folder. The result is spectacular, and the process provides a great...

    $1 - $5 per group Ages 8 - 18 10 to 30 minutes
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    The Exploratorium
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    In this activity, learners use crayons to draw conclusions about rocks and the rock cycle. Learners form crayons ((which can be "weathered"—heated, compressed and cooled—like rocks) into...

    $5 - $10 per group Ages 8 - 18 45 to 60 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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    American Chemical Society
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    In this simple activity, learners see the production of a gas, which visibly fills up a balloon placed over the neck of a bottle. Inside the bottle, water and an effervescent antacid tablet are...

    1 cent - $1 per student Ages 6 - 14 5 to 10 minutes

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