1
How many layers is the earth divided into?
Four Layers
This occurs when two plates move against each other
Transform boundary
What is the thinnest layer of the earth?
Crust
This occurs when an oceanic plate moves under another plate
Convergent boundary
What is a divergent boundary?
This occurs when two plates move away from each other.
In which year was continental drift finally accepted?
1960
What was the super continent called?
Pangaea
It is solid and made up of iron and nickel with temperatures of up to 5,500°C.
The Inner Core
What is the name of the scientist authored a book on the Continental Drift Theory?
Alfred Wegener
What two things usually happen when two plates converge?
New Mountains form
Volcanic eruptions
In which year did Alfred Wegner die?
1930
What theory stated that Pangaea was splitted and the pieces drifted into their present day location and will continue to move
? Continental drift
What are the two different types of Crust?
Oceanic Crust
Continental Crust
The plates move towards one another and this movement can cause earthquakes and volcanoes.
Convergent boundary
Which layer is approximately 2,900 km and made up of semi-molten rock called magma.
The Mantle