Costal Erosion

Question	Answer
What is fetch?	Fetch is the distance of open water a wave travels across.
What is swash?	The wave travelling up the beach.
What is backwash?	The water that travels back to the sea.
Explain longshore drift.	Sand and pebbles are trasported along because the waves sweep them into the beach at an angle and out straight. (This is caused by the wind)
What is hydraulic action?	Trapped air causes explosions in the rock.
What is abrasion?	The sand papering effect over rocky surfaces
What is attrision?	Rocks are bashed together and made smaller.
Name the four ways of coastal transportation.	Suspension Traction Solution Saltation
What is suspension?	Fine sediment is carrried as a suspension in the water making it look muddy or murky.
What is solution?	Dissolved material is carried along in solution so you can't see it.
What is traction?	Larger pebbles and cobbles are rolled along the sea bed.
What is saltation?	Small pebbles are moved when one pebble hits another causing it to bounce.
What is a bay?	A curving indentation in the coastline.
What is a headland?	An area of highland consisting of resistant rock, jutting into the sea.

Resource summary

	Created by India Marsh about 11 years ago

	Copied by James Curtis over 6 years ago