The Rock Cycle

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What is the rock cycle?

Earth's process of changing from one type of rock to another type.

Sedimentary Rock

Formed by sediment that is deposited over time. The rock can have minerals, small pieces of plants and organic matter inside of it.

Examples: limestone and coal

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Igneous Rock

Formed when magma cools and solidifies. This type of rock can form above or below ground. Examples: granite and basalt
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Metamorphic Rock

Formed by pressure deep under the Earth's surface. Under the Earth's surface, this type of rock can be formed by the high heat of magma or by the friction of tectonic plates. Examples: Slate and schist
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