1. 35.Water Filtration EQ: How can we determine the safety and drinkability of our water supplies? LT: I can describe the processes that can be used to convert unusable water to usable resources. POU: I will make observations about rock type vs. permeability -I will draw and label the steps for water filtration -I will work with my group to review water filtration concepts.

2. Welcome! Warm Up 3/20/14 1. Why would clay be found at the bottom of a well? 2. Why are we running out of groundwater? Go to www.goo.gl/vta7d1 to record your response

3. A. Shale B. Sandstone C.Limestone Which rock type is least permeable?

4. A. Shale B. Sandstone C.Limestone Which rock type would I find in an Aquifer?

5. Well Simulation http://www.classzone.com/books/earth_science/terc/content/investigat ions/es1401/es1401page02.cfm?chapter_no=investigation A well Simulation for the different types of rocks

6. How long can an aquifer last? http://www.classzone.com/books/ml_science_share/vis_sim/ewm05_ pg39_aquifer/ewm05_pg39_aquifer.html

7. Demo: What happens when an aquifer runs dry? Compare a moist sponge to a completely dry sponge

8. Finish up – 10 minutes  Finish the conclusion questions for the lab  Tape into your Notebook on page 23 3. Work on uploading any missing assingments to your google drive folder

9. Water Treatment Video

10. Water Filtration Vocabulary 24 Runoff – is precipitation that flows over land into streams and rivers. This water later enters oceans. Filtration – process of passing water through a series of screens that allow water through but not large particles Aeration – The water is mixed to liberate dissolved gases and to suspended particles in water column. Coagulation – The process by which particles in a liquid clump together Sedimentation – The water left undisturbed to allow the heavy clumps of particles and coagulants to settle out Disinfection – The water is treated to destroy any remaining disease causing pathogens Potable Water – drinkable water Safe water: water that will not harm you if you come in contact with it.

11. Water Filtration 24 Sketch picture from pg 106-107

12. EPA Tour of Water Plant EPA tour http://www.epa.gov/ogwdw/watertreatmentplant/flash/in dex.html http://www.epa.gov/ogwdw/watertreatmentplant/flash/in dex.html **Skip Intro ** (Right) Click on Video and select Zoom In Press K to go to the Keyboard Short Cuts

13. BANK You will work in your lab groups to answer questions. When I call time, flash me your Ipad with only the Letter of the answer choice Some questions you will be silent (No Help from your group!) Some I will let you come to a consensus

14. Go to http://www.epa.gov/ogwdw000/kids/flash/flash_qagame.html