science

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Across
  1. 5. the study of Mars
  2. 6. the study of present-day landforms
  3. 8. the study of past cultures
  4. 10. the study of trees
  5. 11. the study of dogs
  6. 12. the study of mammals
Down
  1. 1. the study of origin of life
  2. 2. the study of geology of celestial bodies
  3. 3. the study of weather
  4. 4. the study of flies
  5. 7. the study of the characteristics of the skull
  6. 9. the study of water