why do rivers flood ap 2012
Post on 04-Jul-2015
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How high would the water get during a flood?
Why do rivers flood? Watch this video and write down any causes
Why do rivers flood
• Complete the dominoes cards
• Now split them into human and physical factors.
Causes of river floods
• Human– Deforestation
– Urbanisation
• Physical – Heavy rainfall
– Long periods of rainfall
– Snow Melting
– Relief
Location and Increasing Frequency of UK Floods
• Complete the hand out on Flood frequency in England and Wales
• Turn to p112 in your text book.
Why are there so many more floods now?
1. Climate Change– The world is warming and scientist are now
confident that the changes in weather are due to global warming.
2. Growing population. – We all need somewhere to live and more
recently more homes have been built in marginal areas near rivers.
– More and more impermeable surfaces as more ‘buildings’ develop. E.g. driveways
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