Share Coasts Year 8
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What is uprush?
Water that goes up the coast.
What is backwash?
The water rolling back into the sea.
What determines how large a wave is?
How strong the wind is, how long the wind blows and how long the fetch is
The tides occur because of....(state the main reason)
The moon (and to a lesser extent the sun).
The waves carry eroded material away, this is called....
Transport
Define Erosion
The wearing away of rock, stones, and soil by rivers, waves, wind, or glaciers.
To drop material like sand small stones to form beaches, this is called...
Deposit (desposition)
What is a groyne?
a barrier of wood or stone down a beach to stop sand being washed away.
Name two ways people use coasts.
Holiday, relaxation, fishing, transport
What is a storm surge?
an abnormal rise in sea level caused by a storm, it brings coastal floods
Name some ways that people can protect their coastal homes from erosion. At least 2.
rock armor, revetments, groynes, artificial reef, sea wall, beach nourishment
What is the cheapest coastal defense?
Wooden revetments
What is the most expensive coastal defense?
Sea wall
What does it mean to be sustainable?
Can be carried into the future without harming peoples quality of life, the economy or the environment
What conflict can arise because of coasts?
People might not want factories in coastal (scenic) areas, object to caravan parks, pollution, war.
