35.Water Filtration

35.Water FiltrationEQ: 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.

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

A. Shale B. SandstoneC.Limestone

Which rock type is least permeable?

A. Shale B. SandstoneC.Limestone

Which rock type would I find in an Aquifer?

Well Simulation http://www.classzone.com/books/earth_science/terc/content/investigations/es1401/es1401page02.cfm?chapter_no=investigationA well Simulation for the different types of rocks

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

Demo: What happens when an aquifer runs dry?

Compare a moist sponge to a completely dry sponge

Finish up – 10 minutes1. Finish the

conclusion questions for the lab

2. Tape into your Notebook on page 23

3. Work on uploading any missing assingments to your google drive folder

Water Treatment Video

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.

Water Filtration 24 Sketch picture from pg 106-107

EPA Tour of Water PlantEPA tourhttp://www.epa.gov/ogwdw/watertreatmentplant

/flash/index.html

**Skip Intro** (Right) Click on Video and select Zoom InPress K to go to the Keyboard Short Cuts

BANKYou will work in your lab groups to answer

questions. When I call time, flash me your Ipad with only

the Letter of the answer choiceSome questions you will be silent (No Help

from your group!)Some I will let you come to a consensus

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

flash_qagame.html