(-ology)

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Across
  1. 5. the study of ideas
  2. 7. the study of humanity
  3. 8. the study of minerals and rocks
  4. 9. the study of living things
  5. 10. the study of myths
Down
  1. 1. the study of past objects
  2. 2. the study of the ears and hearing
  3. 3. the study of crime and criminals
  4. 4. the study of the mind
  5. 6. the study of beliefs