This crossword ROCKS!

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Across
  1. 3. The second layer of the Earth
  2. 4. A metamorphic rock that is used to make statues
  3. 5. Sideways movement of plates
  4. 6. The outer core is in a _________ state
  5. 7. The most common igneous rock in Auckland
  6. 8. A small grain or particle that can be compressed to form a rock
  7. 11. This theory explains the movement of the tectonic plates on Earth
  8. 15. An igneous rock that will float on water
  9. 16. Limestone is formed from ______
Down
  1. 1. The process of sediments being compressed and glued together is called
  2. 2. An example of an intrusive igneous rock
  3. 9. These plates move on the Earth
  4. 10. Molten rock inside the Earth
  5. 12. An igneous rock formed inside the earth is called an __________ igneous rock
  6. 13. Plates moving away from each other
  7. 14. A rock from from magma