Crossword #53

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Across
  1. 3. Study of living organisms
  2. 4. Study of Earth's physical structure
  3. 7. Study of plants
  4. 8. Study of human history through excavation
  5. 10. Study of matter and energy
  6. 11. Study of production and consumption
  7. 15. Study of celestial objects
  8. 16. Study of organisms and environment
  9. 17. Study of politics and government
Down
  1. 1. Study of fundamental nature of knowledge
  2. 2. Study of society and social behavior
  3. 5. Study of humans and their cultures
  4. 6. Study of language
  5. 9. Study of mind and behavior
  6. 12. Study of substances and reactions
  7. 13. Study of weather and atmosphere
  8. 14. Study of animals