• Rocks are a naturally formed, non-living Earth material.
  • Rocks are made of minerals.
  • Over time a rock will change into another type of rock.
  • How this happens is known as the rock cycle.
  • There are three main types of rocks.
  • Each will be described in more detail in the coming concepts.
  • Use the resource below to answer the questions that follow.
  • The rock cycle describes how this happens.
  • It includes the processes that transform rocks from one type to another.
  • The processes that can change one type into another are described below.
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