Earth Layers + Plate Tectonics Flashcards
What is the middle of the earth called?
The inner core.
What is the layer outside of the outer core called?
The mantle.
What is the layer outside the inner core called?
The outer core.
What is the outermost layer called?
The crust.
What is it called when two tectonic plates collide?
A convergent boundary.
What is it called when two tectonic plates slide away from each other?
A divergent boundary.
What is it called when two tectonic plates slide past each other?
A transform boundary.
What is it called when two tectonic plates with different densities collide?
A subduction zone.
What is formed at a divergent boundary?
A valley.
What is formed at convergent boundaries?
A mountain range.
What is formed at a subduction zone?
A volcano.
What is formed at a transform boundary?
An earthquake.
What is the difference of the pattern of volcanoes from the pattern of earthquakes?
Volcanoes are usually on the plate boundaries, while earthquakes are next to the plate boundaries.
What causes the tectonic plates to move?
Convection currents.
What is magma?
Molten rock in the mantle.
What is the inner core made out of?
Solid iron and nickel
What causes the rocks to rise and fall in the mantle?
Convection currents.
What is the outer core made of?
Liquid iron and nickel.
What is the mantle made of?
Mostly magma.
What is the crust made of?
Mostly dirt and rock.
What is used to see what’s going on under the earth’s surface?
Seismic waves.
What are the layers of the earth outer to inner?
The crust, the mantle, the outer core, and the inner core.
