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Layers of Earth

TermDefinition
Asthenosphere the fluid portion of the mantle that has special properties
crust the rigid outer layer of Earth
crystal an orderly arrangement of atoms and molecules with a specific shape determined by its chemical composition
igneous rock a rock that forms when melted rock (magma or lava) hardens
inner core the solid layer at the center of the Earth
lava molten rock on the surface of Earth
lithosphere the hard outer layer of Earth made of crust and hard, upper mantle; broken into tectonic plates
magma molten rock under the surface of Earth
mantle the layer of Earth below the crust; upper part is solid and lower part is semisolid
outer core the molten layer at the center of the Earth
intrusive rock igneous rock that formed below Earth's surface from magma cooling slowly.
extrusive rock Rock that forms when lava cools quickly above the surface of Earth.
Seismic waves earthquake waves
Popular Earth Science sets

 



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