22.1 – Flashcard
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Geologist
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Study the earth and the processes that have shaped the earth overtime
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Uniformitarianism
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Idea that the processes that operates today also operated in the past
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Crust
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The rocky outer layer of earth
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Geology
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The study of earths composition and structure
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People who study the earth and the processes that have shaped earth over time are called geologist
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True
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Earths major layers
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Crust, Mantle, Core
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Scientists divide earths interior into crust mantle and core and based on the
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Materials that make up each layer
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Much of earths crust is made up of
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Silicates
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Oceanic crust
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7 kilometers thick Mostly dense rock Makes up ocean floor
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Continental Crust
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Less dense rock 40 kilometers thick Make up continents
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The layer of earth found directly below the crust
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Mantle
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Earths mantle
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Thicker layer Divided into layer based on properties of rock Mainly silicates
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The lithosphere includes the uppermost part of mantle and earths
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Crust
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Rock flows slowly in the asthenosphere
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True
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The stronger lower part of the mantle is called the
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Core
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Core
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The sphere of metal inside earth is called the.....
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The outer core of earth is liquid
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True
