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    The Exploratorium
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    In this two-part activity, learners use everyday materials to visualize one mole of gas or 22.4 liters of gas. The first activity involves sublimating dry ice in large garbage bag. The second...

    $1 - $5 per group Ages 11 - 18 10 to 30 minutes
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    The Exploratorium
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    This highly visual model demonstrates the atomic theory of matter which states that a gas is made up of tiny particles of atoms that are in constant motion, smashing into each other. Balls,...

    $10 - $20 per group Ages 8 - 14 10 to 30 minutes
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    Make
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    In this activity, learners create a "Jam Jar Jet" based on Francois Reynst's discovery of a pulsejet engine, which uses one opening for both air intake and exhaust. Learners will be...

    $10 - $20 per student Ages 14 - adult 2 to 4 hours
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    Colorado State University
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    In this activity about phase change and condensation, learners boil water in an empty pop bottle in the microwave. Then, learners stretch a balloon over the mouth of the bottle and will be...

    1 cent - $1 per group Ages 8 - 14 Under 5 minutes
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    The Exploratorium
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    In this activity, learners create a tornado in a bottle to observe a spiraling, funnel-shaped vortex. A simple connector device allows water to drain from a 2-liter bottle into a second bottle....

    $1 - $5 per student Ages 4 - 14 10 to 30 minutes
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    Community Science Workshop Network
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    In this activity, learners build cars using syringes and water-powered hydraulics. Learners construct the car frame out of cardboard and set up a hydraulic system to raise and lower the car. Use...

    $1 - $5 per student Ages 6 - 14 1 to 2 hours
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    IEEE
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    In this activity, learners explore how wind tunnels provide feedback to engineers about the performance and durability of products such as planes, cars, and buildings. Learners work in teams to...

    $10 - $20 per group Ages 11 - 18 1 to 2 hours
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    American Association for the Advancement of Science
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    Learners complete two simple experiments to prove the existence of air and air pressure which surround us. First, they push an inverted cup into water; the air in the cup prevents water from...

    1 cent - $1 per group Ages 8 - 11 5 to 10 minutes
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    The Exploratorium
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    In this activity, learners will use a compact disc to build an air puck that can glide across a smooth tabletop. The puck glides with almost no friction on a cushion of air escaping from a balloon.

    $1 - $5 per student Ages 8 - 18 30 to 45 minutes
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    Institute of Physics
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    In this demonstration, learners observe the effects of density and pressure. A "diver" constructed out of a piece of straw and Blu-Tack will bob inside a bottle filled with water. This...

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

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