by Naomi White, Science Teacher, Jefferson High School, LAUSD

Discussion Questions:

1. What were some techniques that you used to clean the water?

2. What was the most difficult pollutant to remove?

3. Do you think you could drink your clean water sample?

4. What are some techniques used in sewage treatment plants?

5. How can chemicals be kept out of the water supply?

6. What are some problems that water pollution can cause?

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