Lyric earth science crossword puzzle

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Across
  1. 6. the study of planets
  2. 9. rock the cooling of liquid rock
  3. 11. method a logical approach to solving problems
  4. 12. opening in the earth's crust
  5. 13. removal and transporting
  6. 15. cities become larger
Down
  1. 1. the study of all life on earth
  2. 2. the study of water
  3. 3. flows above the earth's surface
  4. 4. rock are squeezed together
  5. 5. the transfer of heat through touch
  6. 7. rocks are pulled apart
  7. 8. the rebuilding of forests
  8. 10. the study of weather
  9. 14. the rock breaks and moves on either side