9.) Physical Processes - Erosion and Weathering

The erosional process of Hydraulic Action

the force of the waves hitting the shore creates little pockets and crevices, which then increases in size

The erosional process of Abrasion

The waves picking up debris, which then collides with the shore, creating damage

The erosional process of Corrosion (solution)

The dissolving of rocks by sea water by its acidity (limestone and chalk)

The erosional process of Attrition

Materials carried by the waves become smaller and rounder, therefore shaping parts of the beach like pebbles

What is the Swash of a wave?

The movement of water when the wave breaks and moves up the beach, carrying sediment alongside with it

What is the Backwash of a wave?

The movement of water down the beach, carrying sediment with it

What is a Constructive Wave?

A wave that pushed material up the beach, creating more land as it has a stronger swash than backwash

What is a Destructive Wave?

A wave that takes material off of the beach, destroying the land as the backwash is stronger than the swash

The Weathering process : Mechanical (Physical)

The breakdown of rocks into smaller fragments without a change in their chemical makeup (Freeze-thaw, wind)

The Weathering process : Chemical

The breakdown of rocks through chemical reactions (water acid, rain)

The Weathering process : Biological

The breakdown of rocks caused by plants and animals (Roots)