10. Why do rivers flood?
Watch this video and write down any causes
11. Why do rivers flood
• Complete the dominoes cards
• Now split them into human and physical
factors.
12. Causes of river floods
• Human
– Deforestation
– Urbanisation
• Physical
– Heavy rainfall
– Long periods of
rainfall
– Snow Melting
– Relief
13. 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.
14. 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
