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Warm-up (review)

Warm-up (review). How did the oceans become salty? List two similarities and two differences between ocean water and freshwater? What does salinity mean?. DOL (from yesterday) add the items below to the Venn diagram. Water Pure Conains dissolved solids Contains sodium chloride

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Warm-up (review)

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  1. Warm-up (review) • How did the oceans become salty? • List two similarities and two differences between ocean water and freshwater? • What does salinity mean?

  2. DOL (from yesterday)add the items below to the Venn diagram • Water • Pure • Conains dissolved solids • Contains sodium chloride • Freezes at 0 • Freezes at -1.9 • More dense • Good for drinking • Not good for drinking • Important to the water cycle Freshwater Salt water

  3. Objective • Analyze worldwide water distribution problems.

  4. Introduction • What are some things that you use water for every day? • On average, how many gallons of water do you think that you use each day? • How much water do you think you use compared to the world average?

  5. How much water do you use? • How many people live in your home? • How many showers do you take weekly? • How many minutes are your showers? • How many servings of beef do you eat weekly? • How many servings of poultry do you eat weekly? • How many servings of pork do you eat weekly? • How many servings of dairy do you have weekly? • What type of car does your family have (sedan, SUV, compact, etc.)? • Do you spend a lot of money on clothing? • Do you spend a lot of money on electronics?

  6. 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

  7. Data

  8. Global Statisitcs

  9. 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.

  10. Global precipitation

  11. Population Growth Rate

  12. Global Water Stress What is the map showing?

  13. Million Dollar Question • What is the connection between the amount of precipitation, the water stress indicator, and population growth. • Hint: focus on Africa

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

  15. Case Study - Kenya • Video • How is the water crisis affecting Buda, Kenya?

  16. Global Solutions • Solar Desalination • Rainwater harvesting • Pendulum pump

  17. 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

  18. Warm-up (review) • What needs to be added to water to change it from a liquid to a gas? • What needs to be removed from water to change it from a gas to a liquid?

  19. 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?

  20. Global Water Stress

  21. Colorado Springs Water • Video • Where does most Colorado water fall? • Where do most Coloradans live? • Map 3. 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?

  22. 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

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

  24. DOL • CA water crisis video • Watch the video and complete graphic organizer below.

  25. Warm-up • Just copy the objective • Objective • Analyze the impact of global water distribution

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