Chemistry

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