# The Rock Cycle

Understand the rock cycle: rocks slowly change from one type to another over millions of years — igneous rock weathers into sediment, sediment becomes sedimentary rock, heat and pressure create metamorphic rock, and melting starts the cycle again

Builds on: Earth's Layers (soft, https://ai.page/c/earth-s-layers/en.md), Types of Rock (hard, https://ai.page/c/types-of-rock/en.md), Erosion and weathering (soft, https://ai.page/c/erosion-and-weathering/en.md)

Concept id: the-rock-cycle-science. Subject: science. Licence: CC BY-SA 4.0.

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