Flashcards in Earths Structure Deck (7):
What are the four layers of the earths structure?
What is the outer core made out of?
Nickel and iron
What is the mantle?
Soft molten rock at around 380 degrees
What is the inner core
Solid and about 5500 degrees
Why do plates move?
Due to convection currents in the mantle
What is the difference between continental and oceanic plate?
Continental crust=thicker and less dense older
Oceanic crust= thinner and more dense, younger, subducts