2. Water World Revision

3. Key Ideas Detailed content
Why is water important to the health of the planet?
The hydrological cycle regulates water supply and links the atmosphere, biosphere and lithosphere.
Investigating the role of the biosphere and the lithosphere in regulating the hydrological cycle and ensuring water supply.
Workings of the hydrological cycle, as a system.
Changes to the hydrological cycle can affect both human and ecosystem health
Investigating the impact of unreliable and insufficient water supply on humans, using a case study from a vulnerable area, eg South Eastern Australia.
Considering the impact of climate change on the hydrological cycle and ecosystems, in areas which may experience increased aridity.
How can water resources be sustainably managed?
There are many threats to maintaining a healthy hydrological cycle.
Considering the consequences of human interference on water quality, eg river pollution.
Examining located examples of human interference that disrupt water supply eg deforestation, over abstraction of groundwater and reservoir construction.
There is a range of strategies, at a variety of scales, designed to manage water resources more sustainably using different levels of technology.
Considering the costs and benefits of large scale water management projects, eg the Aswan Dam
Examining the role of named small-scale intermediate technology solutions such as the Afridev hand pump in Tanzania.

4. How else can people interfere with the hydrological cycle?
What impact will deforestation have on the water cycle?

5. SE Australia: what’s the problem
What was the name of the area that we studied?
What was the issue?
What was making the problem worse?

6. Climate change Less rainfall – what effect? where?
More rainfall – what effect? where?
Glacial melting – what effect? where?

7. Advantages
Disadvantages
Aswan Dam
Afridev Hand pump

8. Exam Question Use your table to answer this question:
Using a named example, describe the benefits and costs of a large scale water management project (4)
Which example should you use?
Mention advantages and disadvantages, and try to develop your points

9. Key word bingo
These are the key terms relating to the Water World unit
You need to know what these words mean, and how to use them.
Pick nine and write them in a 3x3 grid
Aquifer
Joints
Throughflow
Deforestation
Over abstraction
Water flow
Ecosystem
Permeable
Water harvesting
Groundwater
Pollution
Water management schemes
Hydrological cycle
Pores
Impermeable
Precipitation
Water store
Infiltration
Regulated flow
Water table
Intermediate Technology
River pollution