Warm-up (review)

1. How did the oceans become salty?2. List two similarities and two differences

between ocean water and freshwater?3. What does salinity mean?

DOL (from yesterday)

add the items below to the Venn diagram

1. Water2. Pure3. Conains dissolved solids4. Contains sodium

chloride5. Freezes at 06. Freezes at -1.97. More dense8. Good for drinking9. Not good for drinking10. Important to the water

cycle

FreshwaterSalt water

Objective

• Analyze worldwide water distribution problems.

Introduction

1. What are some things that you use water for every day?

2. On average, how many gallons of water do you think that you use each day?

3. How much water do you think you use compared to the world average?

How much water do you use?1. How many people live in your home?2. How many showers do you take weekly?3. How many minutes are your showers?4. How many servings of beef do you eat weekly?5. How many servings of poultry do you eat weekly?6. How many servings of pork do you eat weekly?7. How many servings of dairy do you have weekly?8. What type of car does your family have (sedan, SUV,

compact, etc.)?9. Do you spend a lot of money on clothing?10.Do you spend a lot of money on electronics?

Water Footprint• Average amount of water a person uses based

on lifestyle.• Factors affecting water footprint:– Country of residence– Diet– Energy– Socio-economic status

• National Geographic Water Footprint Calculator

DataFood Liters of water/kg

Wheat 1000

Rice 1400

Beef 13000

Region Liters of water/day

North America and Japan 350

Europe 200

Sub-saharan Africa 20

Global Statisitcs

Hypothesize

• Water stress indicator– Amount of water used compared to amount of water

available.– Example:

• if a country uses X amount of water, and has 0.5X available, then water stress will be high

• If a country uses Y amount of water, and has 10Y available, then water stress will be low

• What countries do you think have a low water stress indicator? Explain.

• What countries do you think have a high water stress indicator? Explain.

Global precipitation

Population Growth Rate

Global Water Stress

1. What is the map showing?

Million Dollar Question

• What is the connection between the amount of precipitation, the water stress indicator, and population growth.

• Hint: focus on Africa

Video

• Water Changes Everything• List negative impact of water crisis• List positive impact of clean water

Case Study - Kenya

• Video• How is the water crisis affecting Buda, Kenya?

Global Solutions

• Solar Desalination• Rainwater harvesting• Pendulum pump

Analysis

• You work for a non-profit organization focused on getting people in developing countries access to clean drinking water. Your company just received a multi-million dollar grant and you are in charge of selecting and purchasing a water system. – Which of the three would you choose? – Explain your answer by giving the advantages of your

system and the disadvantages of the other systems

Warm-up (review)

1. What needs to be added to water to change it from a liquid to a gas?

2. What needs to be removed from water to change it from a gas to a liquid?

Local water

• Where does Colorado Springs get water?• Do you think that Colorado is under high

water stress? Why or why not?• What are some areas of the country that you

think are under high water stress?

Global Water Stress

Colorado Springs Water• Video

1. Where does most Colorado water fall?2. Where do most Coloradans live?

• Map3. What are the 6 collection systems that Colorado

Springs relies on for water?4. What rivers, creeks, reservoirs and lakes act as a

water source for these systems?5. What are the disadvantages of Colorado Springs

water collection system?

Colorado Springs Water Conservation Plan

• Plan• Goals– Low per capita usage– Focus on commercial usage– Reduce peak demand– Develop conservation– Become national water conservation leader

Southern Delivery System

• Video• Why was SDS chosen?• What is SDS?• Who will it serve?• http://www.sdswater.org/

DOL

• CA water crisis video• Watch the video and complete graphic

organizer below.Causes Effects Solutions

Warm-up

• Just copy the objective• Objective– Analyze the impact of global water distribution