Key words physical geography Flashcards
What is physical or mechanical weathering
caused by the changing temperature on rocks causing the rocks to break sometimes it can be helped by water
What is chemical weathering
Caused by rain water reacting with material grains in the rocks this occurs when the water is slightly acidic
What is biological weathering
When living organisms contribute to the process eg trees crack into the rocks
What is slumping
When the rain water gets through the cracks and the rocks fall down the cliff due to gravity
What is igneous rock formed from
Melted rock that has cooled and solidified
What is sedimentary rocks formed from
Layers at the surface of the earth either water or land
How is metamorphic rocks formed?
When rocks have Been subjected to high pressures or heat so high
What is rockfall
When weathered rocks fall due to gravity
What is longshore drift
The transportation of sand and pebbles along the coast by waves
