New
New
Year 6

The changing coastline

I can use geographical vocabulary to describe coastal processes.

New
New
Year 6

The changing coastline

I can use geographical vocabulary to describe coastal processes.

Lesson details

Key learning points

  1. Coastal communities at risk are deeply affected by changes caused by erosion, flooding or sea level rise.
  2. The sea transports sediment such as mud, sand and stones: these can create coastal patterns of erosion and deposition.
  3. Sediment patterns on beaches reflect wave energy and wind direction.

Keywords

  • Sediment - Sediment is material that is moved by water or air and settles in another place.

  • Erosion - Erosion is the process of Earth’s surface, e.g. rock or soil, being worn away and transported from its original site.

  • Deposition - Deposition is when sand, mud and rocks are dropped by the river.

Common misconception

Children may believe prevailing wind is the direction of wind on any particular day.

The prevailing wind is the most frequent wind direction that a location experiences.

Demonstrate how the sea transports materials by adding a teaspoonful of mud, sand and small stones to a jar of water. Slowly move the jar like a calm sea, only the small mud sediments move. Increase energy by rocking the jar - the sand moves. Mimic a stormy sea by turning the jar over.
Teacher tip

Licence

This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).

Lesson video

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6 Questions

Q1.
are formed by the wind blowing over the surface of the sea.
Correct Answer: waves
Q2.
Arches that collapse become
a cave
a cliff
Correct answer: a sea stack
Q3.
Put the coastal features in the order they would form.
1 - cave
2 - arch
3 - sea stack
Q4.
Harder rocks, like granite, erode
quickly
extrmely fast
Correct answer: slowly
Q5.
Harder rocks erode more than softer rocks.
quickly
Correct answer: slowly
often
Q6.
Coastlines made of hard rock will create:
a beach
Correct answer: a headland
a bay

6 Questions

Q1.
is material that is moved by water or air and settles in another place.
Correct answer: Sediment
Erosion
Deposition
Q2.
is when sand, mud and rocks are dropped by the river.
Sediment
Erosion
Correct answer: Deposition
Q3.
Which process creates coastal features such as cliffs, caves and arches?
Correct answer: erosion
transportation
deposition
Q4.
creates sediment in the sea.
Correct Answer: Erosion
Q5.
is the process of moving material from one place to another.
Erosion
Correct answer: Transportation
Deposition
Q6.
Calm seas can only transport particles of sediment.
Correct Answer: small, tiny, little