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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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    American Museum of Natural History
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    In this experiment, learners examine how pressure affects water flow. In small groups, learners work with water and a soda bottle, and then relate their findings to pressure in the deep ocean. The...

    1 cent - $1 per group Ages 11 - 18 45 to 60 minutes
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    NSBRI
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    In this activity about the circulatory system and space travel (on page 38 of the PDF), learners use water balloons to simulate the effects of gravity and microgravity on fluid distribution in the...

    $1 - $5 per group Ages 8 - 14 45 to 60 minutes
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    4-H
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    In this indoor and/or outdoor activity, learners make an anemometer (an instrument to measure wind speed) out of a protractor, a ping pong ball and a length of thread or fishing line. This is a...

    1 cent - $1 per student Ages 8 - 14 10 to 30 minutes
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    4-H
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    In this activity, learners make a barometer, an instrument to measure change in air pressure. Learners take measurements with their barometer, then make weather predictions and compare them to...

    $5 - $10 per group Ages 8 - 14 1 to 7 days
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    Children's Museum Of Houston
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    In this activity, learners create air cannons out of everyday materials. Learners use their air cannons to investigate air as a force and air pressure. The activity page includes a fun how-to video...

    $5 - $10 per student Ages 6 - 18 30 to 45 minutes
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    Community Science Workshop Network
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    In this activity, learners build a water squirter using a PVC pipe, dowel, and foam. This activity is great for the summer time and introduces learners to forces and water pressure. Note: an...

    $5 - $10 per student Ages 6 - 18 45 to 60 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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    Community Science Workshop Network
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    In this activity, learners build a slide whistle using PVC pipe, bamboo skewer, and piece of foam. Construction of the instrument is relatively simple. Learners will experiment making sounds and...

    $1 - $5 per student Ages 6 - 18 10 to 30 minutes

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