Earth's Spheres Horizon

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