GFG Crossword Puzzle

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Across
  1. 2. Wiped out.
  2. 5. A substance that protects a person from a disease; from the Latin vacca, for cow.
  3. 9. The most common form of one-celled organisms.
  4. 10. A disease that cannot be passed on by the person who is sick to other people.
  5. 11. To imitate how something happens in a real-world situation by acting it out using a model.
  6. 12. A person who begins the spread of disease in a group.
  7. 13. The study of how and why diseases occur.
  8. 15. The thing that stays the same in an experiment. They keep the experiment fair.
Down
  1. 1. What you're trying to measure in an experiment.
  2. 3. A type of medicine that kills microbes or prevents them from growing.
  3. 4. Body system that fights disease.
  4. 6. A disease that spreads very readily from person to person.
  5. 7. The thing you change in an experiment.
  6. 8. The process or act of imitation or acting out.
  7. 14. The study of microorganisms.