Plate Tectonics Flashcards
1
Q
What are the Earth’s layers? (4)
A
- Crust
- Mantle
- Outer core
- Inner core
2
Q
What are the two types of tectonic plates? Explain them. (4)
A
Continental - Thick and less dense. Made of granite.
Oceanic - Thin and more dense. Made of basalt.
3
Q
What is the movement of plates called and what is it’s speed? (2)
A
Continental Drift - It is about 4-5 cm per year.
4
Q
What are the 4 types of plate boundaries? (4)
A
Constructive, Desctructive, Conservative, Collision.
5
Q
What are the two types of volcano? (2)
A
Composite and shield volcanoes.
