1. Arrange students into groups. Each group needs at least ONE person who has a mobile device.
2. If their phone camera doesn't automatically detect and decode QR codes, ask students to
4. Cut them out and place them around your class / school.
1. Give each group a clipboard and a piece of paper so they can write down the decoded questions and their answers to them.
2. Explain to the students that the codes are hidden around the school. Each team will get ONE point for each question they correctly decode and copy down onto their sheet, and a further TWO points if they can then provide the correct answer and write this down underneath the question.
3. Away they go! The winner is the first team to return with the most correct answers in the time available. This could be within a lesson, or during a lunchbreak, or even over several days!
4. A detailed case study in how to set up a successful QR Scavenger Hunt using this tool can be found here.
Question | Answer |
1. 1. Label these types of Pollution as Primary or Secondary. Particulates from a wood fire, Tropospheric Ozone rising during the day, Sulfur Oxide combining with oxygen in the air to make SO3, Mercury released from burning coal. | Primary, Secondary, Secondary, Primary | 2. 2. The Clean Air Act has reduced air polllutants in the US. Which of these has been most reduced and why? CO2, NO2, SO2, Lead, Ozone. | Lead, switch to unleaded gas. | 3. 3. What are three conditions that lead to Photochemical Smog? | Dry weather, warm weather, urban, low wind, high population, sunny, lots of cars/combustion. | 4. 4.How does ozone help us in the upper atmosphere, but is a pollutant at ground level? | protects us from UV light, but is an reactive irritant at ground level. | 5. 5. What are two non-anthropogenic and two anthropogenic sources of CO2 and PM pollution? | Volcanoes, grass fires, etc., Cars, factories, engines. | 6. 6. What are some common indoor pollutants? | Asbestos, CO, Formaldehyde, NOx, Lead, Radon | 7. 7. Mold is a ______ pollutant? What kind of conditions leads to mold? | Natural, moist, warm, low air flow, food sources | 8. 8. CO is an asphyxiant. What does this mean, and how does CO work to do this? | Chokes, and it replaces oxygen in blood. | 9. 9. Explain how lead affects human health? | Neurotoxin | 10. 10. Explain how Radon affects Human health? | Radioactive, cancers | 11. 11. How does Asbestos affect Human Health? | Lung irritant, unremovable glass fibers shred lungs, lung cancer. | 12. 12. All new cars and trucks need a catalytic converter. What does this do, and where is it located? | Converts toxic gases to CO2, and it's on the exhaust. | 13. 13. What is the largest disadvantage to industrial scrubbing systems? | Cost | 14. 14. Normal rain water has a ph of? Acid rain has a pH less than? | 5.5-5.6, less than 4.5 | 15. 15. The greatest effects of acid deposition are on (terrestrial/aquatic) ecosystems, and what is the major source of acids? (related to metal pollution) | Aquatic, and burning coal | 16. 16. What are three was human health is impacted by noise pollution? | Check answer | 17. 17. Noise pollution happens in the water as well as the air. How might whales be affected? | Can't hear each other to communicate | 18. 18. Explain a temperature inversion. | Layer of warm air sandwiching cold air, prevents pollution from rising. | 19. 19. In which countries is air pollution very high? Why? | Check answers | 20. 20. Generally in developed countries air pollution has declines as less____ is used. | Coal, switch over to natural gas. |
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