Types of rocks

Front

What are the three main types of rocks?

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Igneous, Sedimentary, and Metamorphic.

Front

What is an igneous rock?

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A rock formed from the cooling and solidification of magma or lava.

Front

What is the difference between intrusive and extrusive igneous rocks?

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

Front

What is sedimentary rock?

Back

A type of rock formed from the accumulation and compaction of sediments.

Front

How are sediments formed?

Back

Sediments are formed from the weathering and erosion of existing rocks.

Front

What is the process of compaction in sedimentary rock formation?

Back

Compaction is the process where sediments are pressed together under pressure.

Front

What is cementation in sedimentary rock formation?

Back

Cementation is the process where dissolved minerals crystallize and bind sediments together.

Front

What is metamorphic rock?

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A rock that has been changed from its original form due to heat, pressure, or chemically active fluids.

Front

What causes the formation of large mineral grains in intrusive igneous rocks?

Back

Magma cools very slowly, allowing large crystals to form.

Front

What is the role of pressure in sedimentary rock formation?

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Pressure helps to compact sediments together, aiding in the formation of sedimentary rocks.