Structure Of The Earth Flashcards
1
Q
What are the names of the layers of the earth?
A
Inner core, outer core, mantle, crust
2
Q
What are the maximum temperatures reached in the inner cores?
A
5500 degrees
3
Q
What is the outer core made of?
A
Liquid iron and nickel
4
Q
What is the crust
A
The crust is the outer layer of the Earth on which we live.
5
Q
what is the inner core
A
made up of solid iron and nickel.
6
Q
What is the asthenosphere?
A
Acts like a soft plastic. Melts and deforms
7
Q
convection currents in eath
A
the core heats the molten rock(magma)
Magma rises into the mantle
It cools towards the crust and sinks
This current causes tectonic plates to move
8
Q
What is the ridge push
A
Gravity forces plates apart at mid-Atlantic Ridge
9
Q
What is slab pull
A
Gravity pulls oceanic crust under continental
