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8/7/2019 Filter Activity Instructions
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EWB Water for the WorldWater Filter ActivityObjectives1.To introduce students to the global issue of access to
clean drinking water2.To make students enthusiastic about technology and its
role in human development
Materials
The following is a list of materials you need for this activity: 1 2-litre plastic bottle per group 1 500-mL plastic bottle per group 1 cup of fine sand per group 1 cup of coarse sand per group 1 cup of fine gravel per group 1 cup of coarse gravel per group 1 cup of activated charcoal per group 1 cotton balls per group 1 transparent plastic cup per group 1 small piece (about 10 cm2)of cheese cloth per group 1 rubber band per group Monopoly money Photocopies of country profiles and instruction handouts Luxury items such as candy (make sure to check with the teacher first!), or pencils for
country groups to buy
Here are some suggestions of where you can find the materials you need:Material Where to find it
2-litre plastic bottles Recycling bins on recycling day500-mL plastic bottles Recycling bins on recycling dayBuckets or plastic bins Hardware storeCharcoal, activated Aquarium storeCheese cloth Kitchen or car cleaning section of Canadian TireCotton balls Drug store or dollar store
Gravel (Coarse) Hardware store in the garden section (e.g. Home Depot)Gravel (Fine) Hardware store in the construction section (beside cement)Plastic cups Grocery storeRubber bands Office supply storeSand (Coarse) Hardware store in the construction section (beside cement)Sand (Fine) Hardware store in the garden section
Subjects: Science,Geography, Social SciencesTime: 30-45 minutes
8/7/2019 Filter Activity Instructions
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8/7/2019 Filter Activity Instructions
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Instructions United States
General
GeneralArea: 9,826,630 km2
Population:
Urban:Rural:
303,824,64677.2%22.8%
Main Language: English Growth Rate: 0.88% per year
Water Resources
Rainfall: 940 mm Total water use
Total water
withdrawals: 1600 m3
/cap/year
Domestic:
Industrial:Agricultural:
13%
46%41%
Health
Life expectancy:Infant mortality rate:
78.1 years6 infant deaths/1000 live births
Literacy
Adult literacy: 99% of population age 15 and above
EconomyGDP per capita(PPP US$)
$45,800
Overseas Development Assistance (Aid)
% of GDP 0.16%
UNITED STATES
8/7/2019 Filter Activity Instructions
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Instructions United States
Instructions
1.Loosely put a cotton plug in the neck of the cut bottle, then cover the neck of the bottlewith a piece of cheese cloth secured with a rubber band.
2.Pour a 1-cm layer of fine sand over the cotton plug, followed by activated charcoal, 1-cm
of coarse sand, fine gravel, and coarse gravel.3.Clean the filter by slowly and carefully pouring through 1-litre of clean water (over a
bucket).4.Place the filter over a plastic cup. Now, test your water filter by pouring half of the dirty
water through the filter.
Cost of MaterialsActivated Charcoal $50/cup Rubber Band $5 each
Cheesecloth $5/square Sand, Coarse $20/cupCotton $5/ball Sand, Fine $20/cupGravel, Coarse $10/cup Water, Clean $50/litreGravel, Fine $10/cup
8/7/2019 Filter Activity Instructions
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Instructions Canada
General
Area: 9,984,670 km2 Population:Urban:Rural:
33,212,00078%22%
Main Language: English, French Growth Rate: 0.83% per year
Water Resources
Rainfall: From 250 mm in Yellowknife, NWTto 2415 mm in Prince Rupert, BC
Total water use
Total waterwithdrawals:
1386 m3/cap/yearDomestic:Industrial:Agricultural:
20%68%12%
Health
Life expectancy:Infant mortality rate:
81.2 years5 infant deaths/1000 live births
Literacy
Adult literacy: 99% of population age 15 and above
EconomyGDP per capita(PPP US$)
$38,400
Overseas Development Assistance (Aid)
% of GDP 0.29%
CANADA
8/7/2019 Filter Activity Instructions
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Instructions Canada
Instructions
1.Loosely put a cotton plug in the neck of the cut bottle, then cover the neck of the bottlewith a piece of cheese cloth secured with a rubber band.
2.Pour a 1-cm layer of fine sand over the cotton plug, followed by activated charcoal, 1-cm
of coarse sand, fine gravel, and coarse gravel.
3.Clean the filter by slowly and carefully pouring through 1-litre of clean water (over abucket).
4.Place the filter over a plastic cup. Now, test your water filter by pouring half of the dirty
water through the filter.
Cost of Materials
Activated Charcoal $50/cup Rubber Band $5 eachCheesecloth $5/square Sand, Coarse $20/cupCotton $5/ball Sand, Fine $20/cupGravel, Coarse $10/cup Water, Clean $50/litreGravel, Fine $10/cup
8/7/2019 Filter Activity Instructions
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Instructions South Africa
General
Area: 1,219,912 km2 Population:Urban:Rural:
43,786,00057%43%
Main Language: English Growth Rate: -0.5% per year
Water Resources
Rainfall: 464 mm Total water use
Total waterwithdrawals:
264 m3/cap/yearDomestic:Industrial:Agricultural:
31%6%63%
Health
Life expectancy:Infant mortality rate::
42 years58 infant deaths/1000 live births
Literacy
Adult literacy: 86% of population age 15 and above
Economy
GDP per capita(PPP US$)
$9,800
SOUTH AFRICA
8/7/2019 Filter Activity Instructions
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Instructions South Africa
Instructions
1.Loosely put a cotton in the of the cut bottle, then cover the neck of the with a of cheese secured with a band.
2.Pour a 1-cm layer of fine sand over the cotton plug, followed by activated, 1-cm of sand, fine, and gravel.
3.Clean the filter by slowly and carefully pouring through 1-litre of water (over a
bucket).
4.Place the filter over a plastic cup. Now, test your filter by half ofthe dirty through the filter.
Cost of MaterialsActivated Charcoal $50/cup Rubber Band $5 each
Cheesecloth $5/square Sand, Coarse $20/cupCotton $5/ball Sand, Fine $20/cupGravel, Coarse $10/cup Water, Clean $50/litreGravel, Fine $10/cup
R VEL
SAND
ACTIVATED
CHEESE
8/7/2019 Filter Activity Instructions
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Instructions Cameroon
General
Area: 475,440 km2 Population:Urban:Rural:
18,467,69249%51%
Main Language: French, English Growth Rate: 2.2% per year
Water Resources
Rainfall: 1,000 1,750 mm Total water use
Total waterwithdrawals:
61 m3/cap/yearDomestic:Industrial:Agricultural:
18%8%74%
Health
Life expectancy:Infant mortality rate:
53.3 years65 infant deaths/1000 live births
Literacy
Adult literacy: 67.9% of population age 15 and above
Economy
GDP per capita(PPP US$)
$2,100
CAMEROON
8/7/2019 Filter Activity Instructions
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Instructions Cameroon
Instructions
1. put a plug in the of the cut, then the of thewith a of cheese secured
rubber.
2. a 1-cm of fine sand the cotton plug, by charcoal, 1-cm of sand, fine gravel, gravel.
3. the filter by carefully pouring clean
water ( bucket).
4.Place the over a plastic cup. Now, your water filter by pouring of the dirty water through the filter.
Cost of MaterialsActivated Charcoal $50/cup Rubber Band $5 eachCheesecloth $5/square Sand, Coarse $20/cupCotton $5/ball Sand, Fine $20/cupGravel, Coarse $10/cup Water, Clean $50/litreGravel, Fine $10/cup
GRAVEL
CHEESE
CHARCOAL
SAND
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Instructions Ghana
General
Area: 239,460 km2 Population:Urban:Rural:
23,382,84838%62%
Main Language: English Growth Rate: 1.9% per year
Water Resources
Rainfall: 1,000 mm Total water use
Total waterwithdrawals:
44 m3/cap/yearDomestic:Industrial:Agricultural:
24%10%66%
Health
Life expectancy:Infant mortality rate:
59.5 years52 infant deaths/1000 live births
Literacy
Adult literacy: 58% of population age 15 and above
Economy
GDP per capita(PPP US$)
$1,400
GHANA
8/7/2019 Filter Activity Instructions
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Instructions Ghana
Instructions
1. put a cotton neck of the cut, then neck of the a piece of cheese
with a rubber band.2.Pour a 1- of fine sand over the plug,
activated, 1-cm of , fine gravel, and coarse
3.Clean filter and carefully -l of clean
water (over a bucket).
4. filter over a plastic. , test water filter bypouring of the dirty through the filter.
Cost of MaterialsActivated Charcoal $50/cup Rubber Band $5 eachCheesecloth $5/square Sand, Coarse $20/cupCotton $5/ball Sand, Fine $20/cupGravel, Coarse $10/cup Water, Clean $50/litreGravel, Fine $10/cup
CHEESE
ACTIVATED
COURSE
8/7/2019 Filter Activity Instructions
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Instructions Malawi
General
Area: 118,480 km2 Population:Urban:Rural:
13,932,00015%85%
Main Language: English Growth Rate: 2.4% per year
Water Resources
Rainfall: 875 - 1250 mm Total water use
Total waterwithdrawals:
78 m3/cap/yearDomestic:Industrial:Agricultural:
15%5%80%
Health
Life expectancy:Infant mortality rate:
43 years90 infant deaths/1000 live births
Literacy
Adult literacy: 63% of population age 15 and above
Economy
GDP per capita(PPP US$)
$800
MALAWI
8/7/2019 Filter Activity Instructions
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Instructions Malawi
Instructions
1.Loosely in the cut, cover of with of cloth a.
2. a-cm fine cotton,
followed charcoal, coarse , gravel, .
3.Clean by pouring 1-
litre clean (over bucket).
4.Place over a cup. , test water by pouring dirty thefilter.
Cost of MaterialsActivated Charcoal $50/cup Rubber Band $5 eachCheesecloth $5/square Sand, Coarse $20/cupCotton $5/ball Sand, Fine $20/cupGravel, Coarse $10/cup Water, Clean $50/litreGravel, Fine $10/cup
CLOTH
GRAVEL
COARSE CHARCOAL