1. Problems and Possible Solutions 7 th Grade – Green Week

2. Problem Situation that is harmful or unwelcome (needs to be dealt with)

3. Solution Means of solving a problem or dealing with a difficult situation

4. Why do we say possible solution?

5. Water Treatment

6. Water goes down the drain

8. Interceptor Sewer Wet Well and Main Pump

9. Bar ScreensGrit Chambers

10. Removing Small Particles

11. Final Cleaning and Outfall

12. What’s the problem?

13. Bar ScreensGrit Chambers

14. Odor Control Sludge Dewatering

15. Lime Stabilization

19. What’s the problem?

20. What was the solution?

22. Reading: Compost With a partner read and underline the Compost reading. During the reading think about what ingredients you would need to make compost. This will be your evidence during the next activity.

23. Build your compost pile The cup with serve as your compost container. Use the ingredients to “build” your pile. Record all the ingredients you put in the pile. Make sure you have evidence for each ingredient you add to your pile. Record your evidence and reasoning. Be ready to share and defend your compost pile ingredients.

24. Compost Pile Ingredients + Evidence + Reasoning