Types Of Weathering

Question 1

Weathering?

Answer 1

The physical, chemical or biological breakdown of solid rock by the action of the weather or plants

Question 2

What happens during freeze thaw weathering

Answer 2

• Water becomes trapped in the rock
• temperatures drop below zero freezing the water and causing it to expand the rock
• when the temperature rises again the ice melts
• the process repeats again weakening the rock

Question 3

What happens in biological weathering?

Answer 3

Living things such as plants or burrowing animals accidentally attack the rock putting pressure on it and causing cracks weakening their structure eventually splitting the rock

Question 4

Chemical weathering

Answer 4

Naturally acidic rain reacts with calcium carbonate rock
The calcium carbonate dissolves and is washed away in solution weakening the rock