Coastal Landforms – Coastal Landforms – ErosionErosion

Last lesson…Last lesson…

We learned We learned howhow the coast can be eroded the coast can be eroded by the waves and the environment in by the waves and the environment in different waysdifferent ways

This lesson…This lesson…

We will find out We will find out whatwhat the erosion does to the erosion does to the coast – the landformsthe coast – the landforms

• The coast is made The coast is made up of both hard up of both hard and soft rocksand soft rocks

• Softer rock erodes Softer rock erodes more rapidly than more rapidly than harder rocksharder rocks

• This leaves a bayThis leaves a bay• Harder rock Harder rock

remains as a remains as a headland – headland – exposed and exposed and vulnerablevulnerable

• The sea and weather attack the rock The sea and weather attack the rock in the same wayin the same way

• Cracks in the headland grow larger Cracks in the headland grow larger and larger, eventually forming a and larger, eventually forming a cavecave

• With time, the With time, the cave gets cave gets eroded all the eroded all the way thoughway though

• Eventually, the Eventually, the arch collapses, arch collapses, leaving leaving stacksstacks

• These erode These erode further to become further to become stumpsstumps

Now which features can you Now which features can you identify?identify?