The Coast Flashcards
Name sea transportation
Longshore drift
Name 3 creatures of sea erosion
- Bags and Headlands
- Sea cliffs
- Sea cave, Arch, stack and stump
Name 3 sea deposition features
- Beach
- Sand dunes
- Tombolo
Name 2 coastal defence features
- Sea wall
- Rock armour
Explain how a beach is formed 1-6 points
A beach is formed when there is a buildup of material.
1. The backshore is made up of stone, rocks, broken shells and litter that is carried by the sea.
2. The foreshore is made up of small rocks and sand.
3.Both of these particles are formed by longshore drift.
4. The material is deposited on the shore by constructive waves.
5. When the wave breaks, the water spills onto the shore, leaving material it carries behind.
6. The swash and backwash carry material along in a zigzag movement along the seashore, called longshore drift.
What is a sea wall
Sea walls are concrete walls with a curved top on them which helps to deflect the waves back out to sea
What are boulders
Large rocks are placed at the base of cliffs or in front of sand dunes. It prevents erosion by reducing the power of the waves