How waves erode

How waves erode

1. Hydraulic action

   • The sheer power/force of the waves pushes the water into cracks in the rock and compresses the air. Pressure will eventually cause the rock to break

2. Abrasion/ Corrasion

   • Waves contain material like pebble and shingle. It hurls them against a cliff faces and the material in the wave is used to break the cliff up.

3. Corrosion

   • Sea water reacts chemically with the rock and dissolves it

4. Attrition

   • This is when the rocks in the water knock against each other and become smaller, rounded and smoother