A
What is the name of the top layer of the Earth?
Crust
What is it called when two continental plates collide?
convergent boundaries
How do tectonic plates move?
convection currents
What layer of the earth do convection currents take place in
Mantle
What are plates made up of?
Lithosphere
what do plates float on?
astenosphere (Magma or mantle)
What is what type of rock are oceanic plates made of?
Basalt
What is it called when two plates separate from each other?
divergent boundaries
What is the name of the supercontinent
Pangaea
Who is the first person to state the theory of continental drift?
Alfred Wegner
What evidence is used that supports the theory of continental drift?
Fossils, climate, geology
What are the tectonic plates made up of?
lithosphere (crust + upper mantle)
What is the biggest tectonic plate in the world?
Pacific Plate
What is the other way besides convection currents, that plates move?
pressure from new land forming in the ocean (sea-floor spreading)
What direction can plate tectonics move?
Convergent, Divergent and transforming directions
What mountain range was caused by plate boundaries moving?
Himalayan Mountain Range
what is it called when two plates slide past each other?
transformation boundaries
What 3 natural disaster is caused from plate tectonics moving?
Earthquakes, volcano eruptions and tsunamis
A way plate tectonics affect countries that are close to plate boundaries?
Earthquakes or tsunami
What is a natural disaster that affects japan frequently, due to plate tectonic movement?
Tsunami
What theories make up plate tectonics?
continental drift and sea-floor spreading
What is the year the theory of plate tectonics was discussed?
1915
Did Alfred Wegner discover the theory of plate tectonics?
No numerous amount of scientists discovered it.
South American and African plates
What climates are fault lines more likely to occur in?
Dry climates (desert)