Scientific Keyterm Crossword Puzzle

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Across
  1. 5. Possible explanation or solution to a problem
  2. 6. The study of earths origin
  3. 8. A variable that cannot be changed
  4. 10. The study of earths solid
  5. 11. Carefully observing something in order to gain information.
Down
  1. 1. A process by which something proposed is evaluated.
  2. 2. The study of earths oceans
  3. 3. The study of space
  4. 4. A variable that can be changed
  5. 7. The study of earths atmosphere
  6. 9. A set of statements or principles devised to explain a group of facts or phenomena.