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15 Cards in this Set

  • Front
  • Back
The thin, outermost layer of the Earth, or the uppermost part of the lithosphere
the outermost, rigid layer of the Earth that consists of the crust and the rigid upper part of the mantle
the strong, lower part of the mantle between the asthenosphere and the outer core
the soft layer of the mantle on which pieces of the lithosphere move
the liquid layer of the Earth's core that lies beneath the mantle and surrounds the inner core
outer core
the solid, dense center of the Earth
inner core
the theory that continents can drift apart from one another and have done so in the past
continental drift
all the Earth's land masses joined together were once called this
as tectonic plates move away from each other, the sea floor spreads apart and magma rises to fill in the gap
sea-floor spreading
the theory that the Earth's lithosphere is divided into tectonic plates that move around on top if the asthenosphere
plate tectonics
process by which hot material from deep within the Earth rises while cooler material near the surface sinks
when two tectonic plates push into one another, this is the boundary where they meet
convergent boundary
when two tectonic plates move away from each other this is the boundary they create between them
divergent boundary
when two tectonic plates slide past each other horizontally, they create this type of boundary
transform boundary
this is used to measure the rate of tectonic plate movement
Global Positioning System or GPS