Water

My choices & our water supply

What Are The Connections Between My Choices And Our Water Supply?

Source: istockphoto.com

Source: (beach) pinker.wjh.harvard.edu (earth) starryskies.com (sailboat) svquietly.com

What Percentage of the Earth’s Surface Is Covered by

Water?

Land29%

Water

71%

Source: (water) nhptv.org (land) randonneurs.bc.ca

Water On Earth’s Surface

I ce

Fresh Water

Salt Water

Source: (ice) aad.gov.au (lake) students.washington.edu (ocean) nessus.gunslingers.org

2%

97%

1%

All Water Is Not The Same

Source: (faucet) winnipeg.ca (girl) ecn.edu.purdue (ocean) swwater.co.uk

Where Does Our Water Come From?

Surface?/ Ground?

Ground?

Surface?

Source: science.oregonstate.edu

Surfacewater collects. . .

Groundwater

Is treated at a treatment plant...

Is treated at a treatment plant...

Before making its way to your homes and school!

Wastewater is treated and released into Puget Sound.

Wastewater is treated and released into Puget Sound.

Source: dnr.metrokc.gov

Keeping Our Water Clean

Source: (car) mass.gov(cleaners)

washingtonpost.com(storm drain) epa.gov

The Water Game (1)

The Water Game (2)

The Water Game (3)

Event

A water park was built in

your community. A water park was built in your community

Event

The Water Game (4)

The Water Game (5)

The Water Game (6)

Emergency Water Supply Form

How Do We Use Water?

Clothes Washer 23%

Faucet/Other16%

Shower/Bath 20%

Toilet 30%

Leaks 11%

Source:  Saving Water Partnership Seattle And Participating Area Water Utilities (toilet) plasticpipe.com (shower) istockphoto.com (washer) ebmud.com (leak) dbinman.com

Typical Household Water Use

My favorite toilets…

Source: (toilet sink) cleantechblog.com

(dual flush) portlandonline.com

Global Household Water Use Per Person

Australia 247 gallons/ day

USA 157 gallons/ day

Germany 48 gallons/ day

India 28 gallons/ day

China 19 gallons/ day

Sub-Saharan Africa

12 gallons/ day

Researchers estimate that humans need a minimum of 13 gallons of water per day to sustain life.

Source: waterfootprint.org unesco.org

Global Water Use by Sector

0

200

400

600

800

1000

1200

1400

1600

1800

Gal

lon

s p

er P

erso

n p

er D

ay

USA Germany China South Africa

Agricultural

Industrial

Domestic

0

200

400

600

800

1000

1200

1400

1600

1800

Gal

lon

s p

er P

erso

n p

er D

ay

USA Germany China South Africa

Agricultural

Industrial

Domestic

Source: waterfootprint.org

Shower Math

Homework p.6

Homework p.7

Be ready for the next time we meet!

Thanks!

Tonight’s Homework:The Blue Pages

Cedar River Watershed