Plate Tectonics-keywords

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Across
  1. 5. Last layer of the earth
  2. 7. Upper layer of earth
  3. 8. Together with #4
  4. 10. The sudden release of built up stress
Down
  1. 1. Upper layer of mantle
  2. 2. Lower layer of mantle
  3. 3. Also know as "Fire Mountain"
  4. 4. Together with #8
  5. 6. Fill in the blank "Volcano ________"
  6. 9. Waves caused by tectonic plates