Water Treatment Webquest

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22 Φεβ 2014 (πριν από 3 χρόνια και 3 μήνες)

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Name____________________________________


Block__________

Water Treatment Webquest


Directions: Go to the following website and answer the associated questions.


http://water.epa.gov/learn/kids/drinkingwater/watertreatmentplant_index.cfm


Follow a drop of water from the source through the treatment process. Water may be treated differently
in different communities depending on the quality of the water which enters
the plant.


1.

Groundwater is__________________________________________________________________________________________and


typically requires less treatment than__________________________________________________________________________



2. According to th
e picture, list the water treatment steps in order from start to finish.







Click on the link under the picture titled “coagulation”.


3.

Coagulation removes_________________________________________________________________________________________


4.

What is
“floc” AND what is its purpose?

Name____________________________________


Block__________

Click the “Return to Water Treatment Path Page” and then click on the link under the picture titled
“sedimentation”.


5.

Describe the process of sedimentation.







Click the “Return to Water Treatment Path Page” and then clic
k on the link under the picture titled
“filtration”.


6.

During filtration water passes through several filters. What are three different filters that water
can pass through?





7.

What is the purpose of filtration?





Click the “Return to Water Treatment Path

Page” and then click on the link under the picture titled
“disinfection”.


8.

What element is added to disinfect the water?





Click the “Return to Water Treatment Path Page” and then click on the link under the picture titled
“storage”.


9.

Water is
placed___________________________________________________________________________________in order
for disinfection to take place.


Click on the
“Science and Technology” link on the left side of the page.

Scroll down and click on “Drinking water”.

At the
top of the page you will see five highlighted bullet points. Click on the one titled “Human Health
Benchmarks for Pesticides.


10.

What information

will this

report tell you?







Name____________________________________


Block__________

Click on “
human health benchmarks for approximately 363 pesticides

,
which is highlighted in the
sentence.


11.


Choose 2 common pesticides in the table below. Write down its name and population (from the
acute column) that is affected.









Click on the “What Can You Do” link on the left side of the page.


12.


Select one link on this page and click on it.

a.

Title of link:

b.

Summary of what you can do:









13.


Select another link on this page and click on it.

a.

Title of link:

b.

Summary of what you ca
n do:










14.

Select a final link on this page and click on it.

a.

Title of link:

b.

Summary of what you can do: