Weathering Flashcards
0
Q
What’s the difference between weathering and erosion
A
Weathering is wearing away of something whereas erosion takes the rock (for example) away/moves it
1
Q
What is denudation
A
It’s the wearing away of the surface of the earth it’s done by weathering and erosion
2
Q
Give two examples of mechanical weathering
A
Freeze-thaw action + exfoliation
3
Q
Key words for freeze-thaw action
A
By day By night 0 degrees Overtime Expands Temperature Rain Water Freezes Ice Cracks Scree
4
Q
How does freeze-thaw action work
A
By day water collects in a crack on a mountain, by night it freezes and turns to ice and makes a crack in the mountain and overtime the rock breaks off and falls down the mountain. This is known as scree
5
Q
Give an example of chemical weathering
A
Carbonation
6
Q
What is carbonation?
A
Carbon dioxide mixes with the rain and reacts badly with certain rocks
