Six Early Chemists By:Audrey Acrey

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Across
  1. 2. When did Sir William Crookes discover the cathode ray?
  2. 3. When did Democritus discover the atom?
  3. 4. When was Aristotle born?
  4. 5. Where did Otto Hahn study?
  5. 9. What kind of chemistry did Otto Hahn study?
  6. 10. Where did Niels Bohr live, work, and study?
  7. 11. Where did Sir William Crookes live/work?
  8. 13. Where did John Dalton live?
  9. 15. Who was John Dalton?
  10. 17. What did Niels Bohr study?
  11. 18. What was John Dalton's biggest discovery?
Down
  1. 1. When did John Dalton discover atomic theory?
  2. 2. When did Niels Bohr graduate from Copenhagen?
  3. 6. Where did Aristotle live?
  4. 7. Aristotle believed atoms were made of?
  5. 8. What did Otto Hahn discover?
  6. 12. Democritus found out that matter is made of...?
  7. 14. Democritus was a...?
  8. 16. What was Niels Bohr's atom model called?