• There are two main types of sedimentary rocks: clastic and chemical.
  • Clastic rocks are made of sediments, which are sometimes called clasts.
  • Creating rocks from sediments is called lithification.
  • Chemicals precipitate from liquid to form chemical sedimentary Rocks.
  • Use this resource to answer the questions that follow.
  • The concept will explore how something like sand could become a rock.
  • The rock is a sandstone, so first there were rocks that weathered and eroded.
  • The cross-bedding indicates that the sand was deposited in a dune.
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