1. Activity 43 and Activity 44 Water Treatment and Water Quality Report  You need:  Your Books  Bonder/paper to take notes/answer stop and think questions  Something to write with  Sheet 31.1 “KWL: Willow Grove’s Water Quality”  (from activity 31-this should be in your binder as you were told to keep this)

2.  Where do most people get their water?  https://plickers.com/liveview https://plickers.com/liveview Activity 43  How does this compare to how people in 3 rd world countries get their water and the issues they have to deal with?

3. Activity 43  We get our water from a public water system.  Do you think the municipal water districts pump water straight from the source?  Look at the picture of the water treatment plant on page C-65.

4. Stopping to Think 1  What are the main sources of drinking water? Activity 43

5. Coagulation- Flocculation- Sedimnetation- Activity 43

6. Stopping to Think 2  What word means a combination of flocculation and sedimentation?  What was something from the article “The Quest for Clean Drinking Water” that used this process? Activity 43

7. Stopping to Think 3  What was something from the article “The Quest for Clean Drinking Water” that corresponds to the filtration process? Activity 43

8. Stopping to Think 4  A. What is the purpose of adding fluoride to water?  B. Why do you think water plants leave some chlorine in the water that they pipe to customers? Activity 43

9.  Do Analysis Questions Pg C 69-C70  #’s 1-6 We will discuss these in class. Activity 43