plate tectonics Flashcards
1
Q
what is magma called when it surfaces from a volcano
A
lava
2
Q
why is the crust broken into plates that move
A
bc of convection currents in the mantle
3
Q
2 types of plates?
A
continental and oceanic
4
Q
3 plate boundaries
A
continent-continent
continent-oceanic
ocean-ocean
5
Q
3 types of movement
A
divergent, convergent, transform
6
Q
what does divergent create
A
new crust
7
Q
what does convergent create
A
fold mountaions, volcanic mountains, large scale earthquakes
8
Q
what does transform create
A
small volcanoes, small scale earthquakes
9
Q
what is at edge of plate boundaries
A
ring of fire(chain of volcanoes)
10
Q
layers of earth
A
core, mantle, crust.
