Structure of the earth Flashcards
May half term, geography test.
In ascending order, what are the 4 structures of the earth?
Inner core, outer core, mantle, crust.
Who invented the theory of continental drift?
Alfred Wegener.
How many tectonic plates are there?
Nine.
Describe constructive plate boundaries. Two O away.
Two oceanic plates move away from each other.
Describe destructive plate boundaries. O under C.
Oceanic plates move under the less dense continental plates.
Describe collision plate boundaries. Two C together.
Two continental plates are forced together.
Describe conservative plate boundaries. O and C past.
Oceanic and continental plates move past each other.
What are the two types of volcano.
Shield and composite.
Where is Mount Fuego located?
Central America.
When and where did Mount Fuego erupt?
3rd June, 2018, Guatemala.
