Keywords Flashcards
(13 cards)
Abrasion
•Rocks carried along by the sea
•River wear down the cliffs
•Banks using a sandpaper effect
Attrition
Rocks being carried by the sea smash together and break into smaller, smoother and rounder pieces
Backwash
Water that flows back towards the sea after the swash has moved up-shore
Biological Weathering
A type of weathering caused by flora and fauna, such as plant roots growing in cracks in the rock or animals burrowing into weak rocks
Chemical Weathering
The breakdown of rock caused by a chemical change within that rock due to, for example, acid rain
Constructive Waves
A powerful wave with a strong swash that surges up a beach
Destructive Waves
A wave formed by a storm that crashes down onto a beach and has a powerful backwash
Fetch
The distance of open water which the wind can blow
Freeze-Thaw Weathering
A process of weathering in a cold/wet environment involving repeated cycles of freezing and thawing that can make cracks in rock bigger
Hydraulic Action
Process where breaking waves compress pockets of air in cracks in a cliff; the pressure may cause the cracks to widen, breaking off rock
Physical Weathering
Physical break up of exposed rock, i.e. freeze-thaw
Solution
The dissolving of rocks such as limestone and chalk by sea/river water
Swash
The forward movement of a wave up a beach