Weathering

Question 1

What is scree?

Answer 1

Scree is when cliff faces are eroded and then the rocks fall down create a slope.

Scree is a collection of broken rock fragments at the base of crags, mountain cliffs, volcanoes or valley shoulders. Weathering erodes it and then it falls down to form a slope.

Question 2

How does freeze-thaw weathering erode cliffs?

Answer 2

Water goes into a crack and it freezes it then expands and then the ice melts into water. The result of the expansion is that the crack is wider.