Water as a Resource
Water supply is key to our existence and yet we often forget how important it is. Watch the video below and think about the many ways that we depend on water.
Lesson 1) Water Availability and Use
1) Look at map below. It uses territory size to show the proportion of freshwater found in each region.
//Click here to see an animated version// of the map. Roll your mouse over the map and look at how the size of the countries change.
i) Describe the geographical locations that have more than average levels of water resources. These are the countries that get bigger when you roll the mouse over them. You should name regions (eg Sub Saharan Africa) and countries.
ii) Describe the locations that have less than average levels of water resources.
iii) Describe the geographical locations that have more than average levels of water use.
iv) Describe the locations of countries that have less than average levels of water use.
v) Using page 306 in the text book and other sources available to you, define the following terms.
a) Use the diagram on 307 of your text book explain the factors that can lead to a water surplus or deficit. Use the word document below for your explanation. Give examples wherever possible.
b) Answer Q11 (b) on page 307 of your text book.
Lesson 2) Water Usage in the USA:
Look carefully at the diagram below. Although the data is the 2000, the pattern of water use is still the same.
i) Use the data in he diagram to complete the excel sheet below. Once you have completed the table, click on the graph tab at the bottom of the excel sheet to see your data in graph.
ii) Use the graph you have produced to answer these questions.
a) What is the Thermo-electric sector and why does it need water?
b) Describe the pattern of water use shown in the graph you have produced.
c) Which ‘water use’ uses the most water?
d) Which ‘water use’ uses the most groundwater?
e) Which ‘water use’ uses the most surface water?
Look at the graphic below.
1) How does water usage change as a country becomes more developed?
2) Why do you think this change in water usage occurs?
3) As water supplies are already under pressure, how can we ensure that all countries can provide a sustainable water supply in the future? Use the internet to find an example of a project that is working to encourage sustainable water usage.
Lesson 3) Water Scarcity
|Bidwell Marina at Lake Oroville. Top: July 2011; bottom: August 2014. (Top: Paul Hames/California Department of Water Resources via Getty Images Bottom: Justin Sullivan/Getty Images)|
What impact would water shortages have on a countries people and economy?
Look at the map below that shows predicted water scarcity for 2025.
Use the internet to explain the difference between Physical water scarcity and Economic water scarcity.
Describe the geographical locations that are predicted to have physical water scarcity.
Describe the geographical locations that are predicted to have economic water scarcity.
Describe and explain some problems facing a country facing physical water scarcity.
Read these articles about drought in Colombia and California Make notes on each article under the headings, Causes, Social Impacts, Economic Impacts and What can be done?
|Drought in Columbia: Water is being delivered to some of the worst hit areas to replenish ponds, but many of the lorries carry oil.|