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LESSON AIM To understand why coastlines are different across the whole world

LESSON AIM To understand why coastlines are different across the whole world. 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.

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LESSON AIM To understand why coastlines are different across the whole world

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  1. LESSON AIM To understand why coastlines are different across the whole world

  2. 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.

  3. 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

  4. 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 rapidlyAttrition: 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.

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