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Cleaning the Air

(Complete Item Description)

Abstract:: Engineers design methods of removing particulate matter from industrial sources to minimize negative effects of air pollution. In this activity, students will undertake a similar engineering challenge as they design and build a filter to remove pepper from an air stream without blocking more than 50% of the air.

Subject:: Mathematics and Statistics, Science and Technology
Grade Level:: Primary, Secondary
SubTopics:: Pollution
Collection:: TeachEngineering

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Swamp Cooler

(Complete Item Description)

Abstract:: Using a household fan, cardboard box and paper towels, student teams design and build their own evaporative cooler prototype devices. They learn about the process that cools water during the evaporation of water. They make calculations to determine a room's cooling load, and thus determine the swamp cooler size. This activity adds to students' understanding of the behind-the-scenes mechanical devices that condition and move air within homes and buildings for human health and comfort.

Subject:: Mathematics and Statistics, Science and Technology
Grade Level:: Secondary
Collection:: TeachEngineering

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