Earth Science

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Across
  1. 2. A hot, gaseous, self-luminous celestial body, as the sun
  2. 4. Vibration from underground movement along a fault plane
  3. 5. The internal resistance of flow in a liquid
  4. 10. A building that contains one or more telescopes
  5. 12. A large body of water that is part of the hydrosphere
  6. 14. The weather in some location averaged over a period of time.
Down
  1. 1. Flat land covered by tall grass and wildflowers
  2. 2. A volcanic mountain on the seafloor. If flat-topped, it is a guyot.
  3. 3. Extending across a continent
  4. 6. A giant structure that contains hundreds of billions of stars
  5. 7. An imaginary line around the Earth that forms a great big circle
  6. 8. To be at an angle
  7. 9. A low, bowl shaped area of land surrounded by higher lands
  8. 11. A sudden fall of one or more large pieces of a rock from a cliff
  9. 13. A mass of an object divided by its volume