The Earth

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Across
  1. 5. A blend of gases that envelops and protects the Earth
  2. 6. Includes metamorphism, erosion and melting
  3. 7. That's what you study if you want to know more about eruptions
  4. 9. That's what you study if you're very interested in the Earth
  5. 11. The study of climate
  6. 16. All the water on Earth, in all physical states, is called like that
  7. 17. The singer of Queen
  8. 19. The scientific study of the weather
  9. 20. That's what you are passionate about if you want to study earthquakes
Down
  1. 1. They can be open or closed or isolated
  2. 2. It's formed by all living organisms
  3. 3. The 44th President of the USA
  4. 4. Includes the hydrosphere, the atmosphere and the lithosphere
  5. 8. The study of the movement, distribution, and quality of salt water on Earth
  6. 10. The rocky, external layer of the Earth
  7. 12. When geology... goes back through history
  8. 13. The study of the movement, distribution, and quality of fresh water on Earth
  9. 14. It's made up of never ending exchanges of water
  10. 15. A system of food chains
  11. 18. It's about the movement of plates