WEEK 6 - Earth's structure Flashcards
1
Q
Name the layers that make up the earth.
A
The crust, the mantle, the inner core and outer core.
2
Q
How hot is the inner core?
A
5500 celcius, made of solid iron!
3
Q
How thick is the liquid in the outer core?
A
The outer core is liquid and is 2000km thick!
4
Q
What is the mantle like?
A
The mantle is semi-molten and about 3,000 km
thick.
5
Q
describe the crust
A
The crust varies between 5 and 70 km thick and can be categorised into oceanic and continental.
6
Q
What is the crust split into?
A
The crust is spilt into tectonic plates, which move due to ridge push and slab pull.
7
Q
Name the three plate boundaries.
A
Convergent (plates move towards each other), divergent (away from each
other), and conservative (move sidewards).
8
Q
A
