Weathering Types

Question 1

What is freeze thaw and what type of weathering

Answer 1

Mechanical weathering
Water enters cracks.
Temperature drops and ice is formed, expanding the crack.

Question 2

Biological weathering example

Answer 2

Plant roots can get into small cracks in the rock.
As the roots grow, the cracks become larger.
This causes small pieces of rock to break away.

Question 3

Chemical weathering -what is acid rain

Answer 3

Rainwater and seawater can be a weak acid. If a coastline is made up of rocks such as limestone or chalk, over time they can become dissolved by the acid in the water.

Question 4

Mass movement- rockfall, what is it

Answer 4

Rocks breakaway from the cliff often due to free thaw

Question 5

What is mass movement?

Answer 5

The downward movement of weathered material and rock under the influence of gravity

Question 6

Mass movement, what is landslide?

Answer 6

When blocks of rock slide downhill

Question 7

Mass movement, what is mudflow?

Answer 7

Soil and weak rock flows downhill