Earth's layers and spheres

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Across
  1. 2. Earth's outermost layer
  2. 4. Rock that has been changed by heat or pressure
  3. 7. A violent shaking of Earth's crust
  4. 8. A crack in Earth's crust
  5. 10. The bottom portion of the mantle
  6. 11. The middle layer of Earth between core and crust
  7. 13. The solid, rocky outer layer of Earth
  8. 14. The deepest layer of Earth made of solid iron and nickel
  9. 15. The sphere of Earth including rock, soil, and minerals
  10. 16. The living portion of Earth including all organisms
  11. 18. Hot spots in Earth's crust that release gases
Down
  1. 1. The gaseous layer surrounding Earth
  2. 3. The movement of tectonic plates
  3. 5. A large segment of Earth's crust
  4. 6. The liquid layer between Earth's inner core and mantle
  5. 9. Hot melted rock beneath Earth's surface
  6. 12. A layer of hot, plastic-like rock in the mantle
  7. 13. Molten rock that reaches Earth's surface
  8. 15. The study of Earth's structure and history
  9. 17. A naturally occurring solid mixture of minerals