Coasts - Headlands Flashcards Preview

Geography Yr 7 at St Martins > Coasts - Headlands > Flashcards

Flashcards in Coasts - Headlands Deck (16)
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1
Q

Is a bay formed from hard rock or soft rock?

A

Soft rock

2
Q

Is a headland formed from hard rock or soft rock?

A

Hard rock

3
Q

Which form of erosion widens the base of cracks in headlands?

A

Abrasion. Rocks in the sea will be thrown against the base of headlands by the waves.

4
Q

Which form of erosion widens the top of cracks in headlands?

A

Hydraulic action. The air is compressed into the crack, weakening the rock.

5
Q

If a crack in a headland recieves continual erosion, what will form?

A

A sea cave.

6
Q

Which form of erosion compresses air into cracks and weakens the rock?

A

Hydraulic action

7
Q

What is formed if a sea cave, through erosion, goes through to the other side of a headland?

A

An arch.

8
Q

Why are headlands formed from harder rock?

A

Harder rocks are more resistant to erosion.

9
Q

What can speed up the formation of an arch from a sea cave?

A

Twin caves on opposite sides of the headland meeting in the middle.

10
Q

There are no longer 12 Apostles off the coast of Australia as some stacks have collapsed. What remains when a stack collapses?

A

A stump.

11
Q

What is the name of the arch found on the Dorset Coast?

A

Durdle Door.

12
Q

What is the name of the stack near Swannage on the Dorset Coast?

A

Old Harry

13
Q

What is the name of the arch that attracts tourists on the island of Gozo near Malta? (Mr Stevens scuba dived beneath it)

A

The Azure Window.

14
Q

When an arch can no longer support itself, it collapses. What is left?

A

A stack.

15
Q

What are the names of the stacks found off the south coast of Australia? The 12…

A

The 12 Apostles

16
Q

What is the name of the stump next to the stack called Old Harry?

A

Old Harry’s Wife.