Printable Flash Cards
Earth's Structure template



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QuestionsAnswers
Metamorphic RockRock deep within Earth's crust that has been exposed to extreme heat and pressure causing changes to its appearance, structure, and composition
Igneous RockRock formed when heated magma or lava cools and hardens
Sedimentary RockRock formed when sediments deposited in layers, compact, and cement together under pressure over long periods of time
CompactionA process whereby sediments pack, crush, and settle under the action of gravity and pressure from overlying layers
CementationA process whereby compacted sediments bind and stick together and turn into rock
PlasticityThe condition of material in the asthenosphere, existing in a solid state yet having the ability to flow without being a liquid
Inner CoreThe sphere of solid nickel and iron at the center of Earth; surrounded by the liquid outer core
Outer CoreThe outer shell of Earth's core; surrounds the inner core and is made of liquid nickel and iron
MantleThe solid layer of Earth between the crust and the core; made of dense silicates
CrustThe thin solid outermost layer of Earth;made of less dense silicates and is continental (landmasses) or oceanic (ocean bottoms)
LithosphereThe cool, rigid, outermost layer of Earth consists of the crust and the uppermost part of the mantle; pieces of this layer are called lithospheric plates
AsthenosphereThe solid layer with plasticity in the upper mantle that is located just below the lithosphere; lithospheric plates "float" and move on this layer



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