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Flashcards in Earths Structure Deck (7):
1

What are the four layers of the earths structure?

Crust
Mantle
Outer core
Inner core

2

What is the outer core made out of?

Nickel and iron

3

What is the mantle?

Soft molten rock at around 380 degrees

4

What is the inner core

Solid and about 5500 degrees

5

Why do plates move?

Due to convection currents in the mantle

6

What is the difference between continental and oceanic plate?

Continental crust=thicker and less dense older
Oceanic crust= thinner and more dense, younger, subducts

7

What is the surface divided into?

Tectonic plates which float on the mantle and meet at plate boundaries/margins

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