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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. What are 3 indicators of water quality? | kk |
2. What are the 3 ways treated sewage water can be sanitized before it is released into a body of water? | kk |
3. How does BOD and DO relate? | kk |
4. Which step of sewage treatment requires the addition of bacteria? | kk |
5. How does the Safe Drinking Water Act differ from the Clean Water Act? | kk |
6. What happens to the DO in a body of water as the temperature decreases? | kk |
7. Explain what happens when too many nutrients (nitrogen and phosphorous) are added to a body of water. | kk |
8. Most sewage treatment facilities do not preform Tertiary Treatment. If they did what things would they be targeting for removal? | kk |
9. What is the very first thing sewage encounters as it enters a sewage treatment facility? | kk |
10. If fecal coliform is not harmful to humans why do we test for its presence in water? | kk |
11. Describe the negative effect(s) sediment pollution can have on a body of water. | kk |
12. Explain why inorganic compounds like mercury and lead are very serious water pollutants. | kk |
13. Why are rivers less susceptible to water pollution compared to lakes? | kk |
14. What leads to HAB’s (harmful algal blooms)? What type of organism is algae? | kk |
15. Which is most likely to cause an increase in BOD? thermal pollution / sediment pollution / inorganic compounds | kk |
16. What is the substance that sewage treatment is removing to the greatest extent? | kk |
17. Explain why detergents and soaps can be a type of water pollution. | kk |
18. What biome is sewage treatment modeled after? | kk |
19. List one advantage and one disadvantage of septic systems. | kk |
20. Explain why oxygen is so important to secondary treatment. | kk |
21. Describe sludge and list the 3 things that can be done with it. | kk |
22. What is the solution to water pollution?? | kk |
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