Coasts are different because of

EROSIONCoastal Erosion is the wearing

away of the land by the sea.Different types of rocks wear

away at different speeds and in different ways.

Types of erosion Hydraulic Action. This is the force of water

hitting the cliff and squeezing air into the cracks in the rock

Abrasion. This is the force of the bits of rock carried in the water blasting into the cliff.

Attrition. This is the process of rocks hitting each other and breaking into smaller rocks

Corrosion. This is a chemical reaction between the sea water and the minerals in the rocks

The secret art of Coastal kung fu!

Hydraulic Action: make punching movements with hand- demonstrates force of water hitting cliff.

Abrasion: make a throwing gesture with hands like you are throwing dealing cards very rapidly

Attrition: make 2 fists, and then bring them towards each other, hitting each other, then open hand to resemble a

stone breaking.

Corrosion: have arms out stretched in front of you, waving fingers, and moving arms downwards. Sound effect of

something dissolving is needed.