Year 10 Coasts

What are the four erosion processes?

• Solution

• Hydraulic action

• Attrition

• Saltation

• Abrasion

What will happen next?

• The soft rock will erode away first

• The hard rock will erode away first

• Nothing

Which of these describes the erosion process of Hydraulic Action at the coast?

• The acidity of the sea water dissolves the rocks at the coast.

• Rocks are picked up by the sea and thrown against the side of the cliff face.

• Waves crash into the cliffs and force air and water into cracks. The power of the waves is eroding the rocks.

• The sea water crashes the rocks together until the get smaller and smaller

Weathering occurs at the _____ of a cliff

Which of the following are types of weathering?

• Chemical

• Physical

• Biological

• Layer

• Onion skin

What is this an example of?

• Chemical weathering

• Erosion

• Freeze-thaw weathering

• Biological weathering

What is this an example of?

• Chemical weathering

• Erosion

• Freeze-thaw weathering

• Biological weathering

50:50 - What is the movement of a wave up a beach called?

• Swash

• Backwash

What is this?

• A cave

• An arch

• A doorway

• A rockpool

What will happen to the arch next?

• It will get wider

• The top will erode away and fall down, leaving a stack

• Longshore drift will fill up the gap and make a new cliff face