Questions and Answers
Which type of rock forms when magma makes its way to Earth's surface as lava and then cools?
Extrusive/Volcanic rock
What is the scientific study of rocks called?
Petrology
What are the three categories into which geologists group rocks based on how they form?
Igneous, metamorphic, and sedimentary
What is the process by which magma or molten material originating deep within the Earth hardens and crystallizes to form rock called?
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What is the depth at which the mantle meets the liquid outer core of the Earth?
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