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WJEC (B) GCSE Geography Theme 2 Topic 2 Click to continue Hodder Education Revision Lessons Water supply
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WJEC (B) GCSE Geography Theme 2 Topic 2 1Work in pairs. Number yourselves 1 and 2. 2Number 1s face the board. Number 2s must face away from the board. 3You are going to be shown a diagram. 4Number 1s must describe the diagram to number 2s. 5Number 2s must draw the diagram on A3 paper, based on Number 1’s description. Click to continue The water cycle
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WJEC (B) GCSE Geography Theme 2 Topic 2 Click to continue
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WJEC (B) GCSE Geography Theme 2 Topic 2 List as many stores as you can from the diagram. Stores Click to continue
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WJEC (B) GCSE Geography Theme 2 Topic 2 Stores Clouds Ocean/sea Soil Rock Trees/plants Ice/snow Lake Click to continue
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WJEC (B) GCSE Geography Theme 2 Topic 2 Transfers List as many transfers as you can from the diagram. Click to continue
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WJEC (B) GCSE Geography Theme 2 Topic 2 Transfers Click to continue Evaporation Precipitation Transpiration Groundwater flow Throughflow Streamflow Surface runoff Infiltration Percolation Snow melt
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WJEC (B) GCSE Geography Theme 2 Topic 2 Click to continue Routes to the ocean Describe four routes by which rainfall might reach the ocean.
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WJEC (B) GCSE Geography Theme 2 Topic 2 1 Precipitation fall flows over the surface to the ocean. 2 Precipitation falls and lands on leaves of trees, drips off (stem flow) and flows over the ground as surface runoff (e.g. as a stream). 3 Rain infiltrates soil and flows through soil as throughflow. 4 Rain infiltrates soil and flows through saturated zone as groundwater flow. Click to continue Routes to the ocean
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WJEC (B) GCSE Geography Theme 2 Topic 2 Question: Explain how cutting down trees might affect the water cycle. (3 marks) Click to continue Exam practice Exam tips The question says ‘explain’, so you should try to use the words ‘so’ and ‘because’ in your answer. Use key words from the water cycle diagram. Don’t write the question out again — it wastes time.
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WJEC (B) GCSE Geography Theme 2 Topic 2 Question: Explain how cutting down trees might affect the water cycle. (3 marks) 1 Less interception 2 Loss of a store of water 3 Less transpiration 4 Increased surface runoff So, a good answer would be: There would be less interception of rain [1 mark], so there would be greater surface runoff [1 mark] and a loss of a store of water [1 mark]. Click to continue Exam practice
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WJEC (B) GCSE Geography Theme 2 Topic 2 Question: Explain one way that human activity can change the water cycle. (2 marks) Click to continue Exam practice Exam tips The question says ‘one way’, so you need to give only one example. The question says ‘explain’, so you should try to use the words ‘so’ and ‘because’ in your answer. Use key words from the water cycle diagram. Don’t write the question out again — it wastes time.
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WJEC (B) GCSE Geography Theme 2 Topic 2 Question: Explain one way that human activity can change the water cycle. (2 marks) 1 Tarmacking/concreting the ground = water can’t infiltrate 2 Cutting down trees (deforestation) = loss of store, less interception, increased surface runoff 3 Planting trees (reforestation or afforestation) = creates a store, more interception, slows surface runoff 4 Building a reservoir or dam = increased evaporation 5 Farming = planting crops creates a store, harvesting removes a store 6 Industry = takes water out of a system 7 Building a well or borehole = takes a water store from aquifer So, a good answer would be: Concreting the ground [1 mark] would stop the water infiltrating the ground. [1 mark] Click to continue
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