Study

Coasts Year 8

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