Three Kinds of Rock

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Three Kinds of Rock

• Salvatore Tarara
• January 6, 2009
• Grade 4

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Metamorphic

• Metamorphic rocks are formed by heat and
  pressure.They push them together.

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Sedimentary

• Sandstone is a sedimentary rock. It is made of
  little bits of mica and feldspar.Limestone is
  made from the minerals calcite.

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IGNEOUS

• Granite is a Igneous rock.Witch is formed by
  magma when it cools slowly.Obsidian forms when
  magma cools quickly.