marilyn's lesson 2 Flashcards
1
Q
What is weathering?
A
the slow breakdown of rock into smaller pieces by natural events (theres two types of weathering)
2
Q
What is chemical weathering?
A
When minerals in rocks interact with chemicals in water and air
3
Q
What is physical weathering?
A
Physical weathering breaks rocks into smaller pieces but the rock pieces keep the properties of the original rock
4
Q
What are the two types of weathering?
A
- Chemical
- Physical
5
Q
What are the three main causes of physical weathering?
A
- Water
- Roots
- Wind
6
Q
Earth’s surface is reshaped by…
A
- erosion
- deposition
- sediment
7
Q
What is a glacier?
A
a slow moving river of ice
