Across
- 7. who invented the smallpox vaccine
- 8. yellow gas used in ww1
- 9. who developed the theory of the four humours
- 11. who wrote fabric of the human body
- 12. who made the theory of opposites
Down
- 1. developed germ theory
- 2. what was discovered during the renaissance that allowed people to see small microbes
- 3. watson and crick developed the model of ...
- 4. ... helmet developed in ww1
- 5. james simpson developed these
- 6. also known as black death
- 8. bad smells that caused disease
- 10. people who would whip themselves for their sins