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    Integrated Teaching and Learning Program, College of Engineering, University of Colorado at Boulder
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    Learners observe and discuss a simple model of a wet scrubber, a device for cleaning industrial air pollution. This demonstration can be combined with other demonstrations and activities to create...

    $10 - $20 per group Ages 8 - 14 10 to 30 minutes
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    Integrated Teaching and Learning Program, College of Engineering, University of Colorado at Boulder
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    Learners observe and discuss a vacuum cleaner as a model of a baghouse, a device used in cleaning industrial air pollution. In this demonstration, learners observe the inside of a used vacuum...

    $1 - $5 per group Ages 8 - 14 10 to 30 minutes
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    Integrated Teaching and Learning Program, College of Engineering, University of Colorado at Boulder
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    Learners observe a simple balloon model of an electrostatic precipitator. These devices are used for pollutant recovery in cleaning industrial air pollution. Combine this activity with other...

    $1 - $5 per group Ages 8 - 14 10 to 30 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 model of a pollution control device--a cyclone. A cyclone works by whirling the polluted air in a circle and accumulating particles on the edges of the container. This mechanism is...

    1 cent - $1 per student Ages 8 - 14 10 to 30 minutes