Rock Cycles

The video explains the rock cycle, starting with Earth's oldest rocks, which contain minerals over 4 billion years old. It describes how weathering breaks down rocks into grains, forming sedimentary rocks under pressure. Metamorphic rocks form under heat and pressure, while igneous rocks form from cooled magma. The cycle involves tectonic plate movements, creating mountains and restarting the process.

Describe the process that leads to the formation of igneous rock from magma.

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What happens to rocks when they reach the Earth's surface in the context of the rock cycle?

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