Types of rocks

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What is a metamorphic rock?

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A metamorphic rock is a type of rock that has been changed from its original form due to heat and pressure.

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How is metamorphic rock formed?

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Metamorphic rock is formed from existing rocks that undergo changes due to heat and pressure.

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What is a sedimentary rock?

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A sedimentary rock is a type of rock that is formed from the accumulation and compaction of sediments.

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How is sedimentary rock formed?

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Sedimentary rock is formed from compacting and cementing sediments together.

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What are igneous rocks?

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Igneous rocks are formed from the cooling and solidification of magma or lava.

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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.

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Why do intrusive igneous rocks have large mineral grains?

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Intrusive igneous rocks have large mineral grains because magma cools very slowly, allowing large crystals to form.

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What is conglomerate rock?

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Conglomerate is a type of sedimentary rock formed from compacted and cemented gravel-sized particles.

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What is the role of pressure in sedimentary rock formation?

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Pressure helps to compact sediments together, allowing them to form sedimentary rocks.

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What is the process of weathering?

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Weathering is the breaking down of rocks into smaller pieces due to environmental factors.