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Across
- 2. originated quantum theory
- 4. developed the classification system of living things
- 5. proposed a heliocentric theory
- 9. Darwin wrote Origin of Species
- 13. BC Greek know for his medical ethics.
- 14. inventor of the light bulb & phonograph
- 15. inventor of the telephone
- 18. formalized the study of genetics
- 19. invented scuba gear
- 21. proved Copernicus' theory.
- 22. Isolated penicillin
Down
- 1. calculated Pi
- 3. created the first telescope
- 6. invented dynamite
- 7. He invented calculus Volta invented a battery
- 8. A nurse, fixed unsanitary conditions; sparked change
- 10. first man to walk on the moon.
- 11. Developed the first vaccine for smallpox
- 12. who constructed proofs of a geocentric theory of the solar system
- 16. theory of general relativity
- 17. Developed a vaccine for polio.
- 19. discovered two new radioactive elements
- 20. devised code for the telegraph