Chemistry

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Across
  1. 3. differentiates substances from each other
  2. 5. indestructible, uncuttable, unbreakable entity
  3. 7. four-element concept of matter
  4. 9. study of matter
  5. 10. resulted to occultism and black magic
  6. 11. process by which metal is obtained from its ore
  7. 14. pure water is hydrogen and oxygen in a ratio of 2:1
  8. 15. composition of the heavens and the stars
Down
  1. 1. need in evidence and support before belief
  2. 2. arrangement of particles that make up matter
  3. 4. dephlogisticated air
  4. 6. matter could be changed from one form to another through the addition or removal of heat and moisture
  5. 8. released in the air after combustion of materials
  6. 12. Father of Modern Chemistry
  7. 13. earliest metal documented