Germ Theory and Scientists

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Across
  1. 3. Substance on germs that triggers immune response.
  2. 4. ____ Theory – Old idea: Disease comes from "bad air."
  3. 6. John _____ traced cholera outbreak to contaminated water; first epidemiologist. 1854
  4. 7. _____ Theory = Diseases are caused by germs like bacteria and viruses.
  5. 8. Robert ____ linked specific bacteria to specific diseases; discovered TB and cholera bacteria. Proved that germs cause disease! 1890.1890.
  6. 9. _____ proposed spontaneous generation over 2300 years ago.
  7. 14. Edward ____ used cowpox to create the first smallpox vaccine in 1796.
  8. 15. Robert _____ - First to see and name cells in 1665; wrote Micrographia.
  9. 16. Joseph ____ used antiseptics to prevent infection in 1865.
  10. 17. ____ Generation – Old idea: life comes from nonliving matter.
  11. 18. Francesco ____ showed maggots come from flies, not meat.
  12. 19. _____ Semmelweis showed hand washing prevents disease in 1847.
Down
  1. 1. Medicine that kills or stops bacteria.
  2. 2. Chemical that kills germs on living tissue.
  3. 5. _____ van Leeuwenhoek – First to see microbes in 1674; father of microbiology.
  4. 10. An explanation of phenomena in science.
  5. 11. Alexander ____ discovered penicillin, the first antibiotic. 1928
  6. 12. _____ Pasteur proved spontaneous generation wrong with swan-neck flasks. Showed microbes cause food to go bad and that microbes can cause illness. 1862
  7. 13. Scientist who studies how diseases spread is an _____.