Geography S1 Flashcards
What shapes the coast?
The waves
What is erosion?
When waves wear away the coast
What is transportation?
When waves carry eroded material away
What is deposition?
When waves carry material on and off the land
What is the coast?
A narrow area between the land and sea
What happens to the coast
It is fragile and constantly changing (erosion)
What can the waves do?
They can erode soft rocks quicker than hard rocks, the coastlines are made of different rocks.
What are the eroded coastlines called when the land sticks out?
Headlands
What are the coastlines called that are in the way?
Bays
How is a cave formed on the headlands of the coast?
A cave is formed by the waves crashing the soft rock and creating a cave
How is an arch formed?
An arch is formed by waves crashing hard against the cave to form an arch
How is a sea stack formed?
A sea stack is formed by waves crashing against an arch until the land above collapses to form a stack
How is a stump formed?
A sea stump is when the stack takes too much pressure from the waves and collapses
Name three ways we can protect the coast
Groynes- wooden barriers built down the coast to stop sand moving
Sea wall- concrete walls built along the coast to protect the land from waves
Gabions- wire mesh baskets filled with cobbles. They can absorb waves and wind energy
What are the problems of protecting the coast?
By building groynes, another part of the coast doesn’t recieve sand so gets eroded quicker. Stone walls are really exspensive
How were scotlands hills formed?
When scotland was covered in ice during the ice age, the glaciers helped shape scotlands hills
Name four features that the ice formed during the ice age
Pyramidal peaks
Aretes
U-shaped valleys
Corries
What are pyramidal peaks?
Sharp pointed mountain summits
What are aretes?
Narrow, steep sided ridges
What are corries?
Steep sided hollows high on the mountain side