Igneous Rock

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A type of rock that forms from the cooling of molten rock at or below the surface of the earth

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Igneous Rock

Front

Igneous rock that forms from lava on Earth's surface

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Extrusive Rock

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Extrusive rocks that form quickly above the Earth's surface have

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small or no crystals

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Igneous rock that forms when magma hardens beneath Earth's surface

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intrusive rock

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A slow cooling igneous rock will have _____ crystals

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large

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Extrusive forms _________crystals

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small

Front

The process by which igneous rocks are formed...

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melting and cooling of magma

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Rhyolite is a fine-grained, extrusive, igneous rock. How did it form?

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rapidly cooling lava

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Molten rock found beneath Earth's surface is called

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magma

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Molten rock found on Earth's surface is called

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lava