types of rock

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Across
  1. 2. The most common intrusive igneous rock
  2. 4. You can see layers in this rock. Could be sand, or pebbles.
  3. 6. a solid mass of mineral material or other matter that occurs naturally.
  4. 8. force plays a major role in the formation of metamorphic rock
  5. 9. There are two kinds of igneous rock. Which term indicates that the rock cooled on the inside of the Earth's crust
  6. 11. a sedimentary rock formed from compacted sand grains
Down
  1. 1. term for molten rock material found under the Earth
  2. 3. This type of rock is formed when you cool melted rock.
  3. 5. cools so rapidly that there is little time for crystals to form
  4. 7. an example of an extrusive igneous rock
  5. 10. When you watch a volcano erupt molten rock