Earth Science Vocab

Question Answer
Asthenosphere a layer of hot soft rock in the upper mantle
Composition the material that something is made up of
Crust a thin layer of rock that surrounds the Earth
Density the quantity of matter in a given amount of space
Lithosphere the crust and the very top portion of the mantle together
Mantle Earth’s thickest layer, it has a more rigid upper portion and a softer, lower portion
Outer core a layer of hot liquid metals surrounding the inner core
Inner Core a ball of hot, solid metals at the center of Earth (mostly iron and nickel)
Magma hot fluid rock within or beneath the earth’s crust (pockets of magma can be found in the mantle)
Hot spots places in the crust where heated fluid rock (magma) rises in thin columns from the mantle

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