Earth's Spheres Horizon

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Across
  1. 3. A large, slow moving, thick, sheet of ice.
  2. 5. Mr. Morrow's black and white dog.
  3. 7. When two tectonic plates collide and push up a mountain range.
  4. 8. A prefix that means air in Greek.
  5. 12. Processes that wear away and reduce rock to sediment.
  6. 13. The liquid center of our planet
  7. 14. The largest and the saltiest areas of water on the planet.
  8. 15. The ability to do work.
  9. 17. A prefix that means water in Greek.
  10. 18. A large body of water surrounded by land.
  11. 19. A body of flowing water running towards the sea.
Down
  1. 1. Ice covered parts of the Earth.
  2. 2. Molten rock.
  3. 4. The envelope of gases that surrounds a planet or moon.
  4. 6. Includes all the living organisms on Earth.
  5. 8. An underground reservoir of freshwater.
  6. 9. All water on Earth.
  7. 10. A group of parts that work together.
  8. 11. A prefix that means Earth in Greek.
  9. 15. The wearing away of rock by water.
  10. 16. a prefix that means life in Greek.