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ACT
In this activity, students will capture and examine the particles to gain an appreciation of how much dust, pollen and other particulate matter is present in the air around them. Students will place "pollution detectors" at various locations to determine which places have a lot of particles in the air and which places do not have as many. Quantifying and describing these particles is a first step towards engineering methods of removing contaminants from the air.
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- Knovation Readability Score: 3 (1 low difficulty, 5 high difficulty)