AIR POLLUTION IN the Community
Activity 3b (Explore): Measuring Particulate Matter Using Engineering
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Activity Summary
Students use the engineering design process to design a low-tech particulate matter detector. They test out their models, and then deploy them into the field where they can gather PM that is deposited. Next, they gather and analyze the data from their detectors in order to support claims about how safe the air is around the school.
Engineering Note: If students have not done any engineering in this class before, it is worth taking the time to teach them the engineering design process and to do a brief sample activity. Introductory information can be found here. A good sample activity to do with students is the parachute design activity here.
Activity Objectives & Materials
Approximate Time: 3-4 class periods (180-240 minutes)
Objectives:
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Students will be able to design, test, and deploy particulate matter collectors
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Students will be able to collect and analyze data to determine what areas of the school community have high levels of particulate matter in the air
Materials:
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Magnifying glass or dissecting scope
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Graph paper
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Materials for building the detector (see note below)
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Materials for testing the detector (ex. flour and pencil shavings)
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Scissors
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Additional paper for students to brainstorm and design
Handouts:
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Design A Particulate Matter Detector
Timing Note: The time for this challenge is flexible. Adjust based on length of class periods and how long students take to build and test their prototypes. It will likely take at least 2 class periods for students to go from initial design to final products.
Standards Connection
Warm-up
1. Frame the Activity
2. Introduce the Engineering Design Challenge
3. Review Testing Procedures
4. Review Materials
5. Brainstorming Ideas
6. Creating Designs
7. Building Prototypes
8. Testing Prototypes
9. Redesign and Improvement
10. Build Final Designs
11. Choose Locations for Monitoring
12. Deploy Monitors
13. Data Collection
14. Data share
15. Analysis Questions
16. Formative Assessment: Conclusion
17. Reflection