Types of Rocks

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What are Chemical Rocks?

Back

Rocks formed when minerals crystallize to form a solution.

Tags

NGSS.MS-PS1-2

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What are Organic Rocks?

Back

Rocks formed when the remains of plants or organisms are deposited in thick layers.

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What texture do Intrusive Rocks have?

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Course grained texture.

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How are Intrusive Rocks formed?

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When magma cools slowly beneath the Earth's surface.

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How are Extrusive Rocks formed?

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When molten rock cools rapidly on the Earth's surface.

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What is the main difference between Intrusive and Extrusive Rocks?

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Intrusive rocks form from magma cooling slowly, while extrusive rocks form from lava cooling quickly.

Front

Give an example of a Chemical Rock.

Back

Rock salt is an example of a chemical rock.

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Give an example of an Organic Rock.

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Coal is an example of an organic rock.

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What is the process of rock formation called?

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Lithification.

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What is the main component of most rocks?

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Minerals.