Geo/Terr Crossword Puzzle

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Across
  1. 3. My land, it's under my control.
  2. 4. The center of the earth.
  3. 5. Well if the earth is the center of the universe.......
  4. 6. If my calculations are correct the earth should only be a couple terrameters long.
  5. 7. The _____________ was very dry.
  6. 8. Look at this odd shaped rock.
Down
  1. 1. Alien.
  2. 2. The worm is _________________.
  3. 5. This landscape is very peculiar.
  4. 8. Inside the _________ I found, there was a ridiculous amount of crystals.