Coasts are different because of erosion coastal Erosion is the wearing away of the land by the sea

Coasts are different because of

• EROSION

• Coastal 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.