Coasts

Lesson 1: What is a coast and what are waves?

To know what coasts are and where we find them.
To be able to name major oceans and seas in the world.
To understand what waves are and how they are formed.

Without showing or telling the class what the new topic is on, play them the audio below and then discuss what they think this topic is going to be about and what they will learn.

Can you identify what we will be learning about in this unit?
Print the thought bubble and in pairs see how many words/terms about coasts they can think of.

Using Atlases and the worksheet below, label the oceans and seas of the world.

Oceans and Seas of the World - worksheet
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Crest: The top of the wave.
Trough: The low area in between two waves.
Wavelength: The distance between two crests or two troughs.
Wave height: The distance between the crest and the trough.
Wave Frequency: The number of waves per minute.
Velocity: The speed that a wave is traveling. It is influenced by the wind, fetch and depth of water.
Swash: The movement of water and load up the beach.
Backwash: The movement of water and load back down the beach.

Draw and explain the following two types of wave.

Constructive

Destructive

Review the unit and key words - close books and use mini whiteboards to answer revision questions

Kahoot on Waves

Lesson 2: What happens on a coast - Erosion?

To understand the 4 types of erosion
To be able to draw diagrams explaining the types of erosion

Coastal erosion
The sea shapes the coastal landscape. Coastal erosion is the wearing away and breaking up of rock along the coast. Destructive waves erode the coastline in a number of ways: