ES Red Mod Ch 3 Test Rock Cycle

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What is a metamorphic rock?

Back

A metamorphic rock is a type of rock that has been changed from its original form due to heat, pressure, or chemically active fluids, resulting in changes in mineral composition and texture.

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What indicates that a rock is metamorphic?

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Distorted layers in the rock indicate that it is metamorphic.

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What is mica?

Back

Mica is a group of silicate minerals known for their sheet-like structure and perfect cleavage, commonly found in metamorphic rocks.

Tags

NGSS.MS-PS1-1

Front

What is breccia?

Back

Breccia is a type of sedimentary rock composed of angular fragments cemented together, characterized by a clastic texture.

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What does 'clastic' mean in geology?

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Clastic refers to rocks that are composed of fragments or clasts of pre-existing minerals and rock.

Front

What is the cooling rate of igneous rocks formed from lava?

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Igneous rocks formed from lava typically cool rapidly, resulting in a fine-grained texture.

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What is rhyolite?

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Rhyolite is a fine-grained igneous rock that is rich in silica and typically light in color.

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What is the difference between intrusive and extrusive igneous rocks?

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Intrusive igneous rocks form from magma that cools slowly beneath the Earth's surface, while extrusive igneous rocks form from lava that cools quickly on the surface.

Front

What is the significance of mineral composition in rocks?

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Mineral composition determines the properties, classification, and appearance of the rock.

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What are the three main types of rocks?

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The three main types of rocks are igneous, sedimentary, and metamorphic.