scientific method and graphing

12345678910111213
Across
  1. 3. guess
  2. 5. makes an organism react
  3. 7. can change
  4. 10. fixed quantity broken into parts
  5. 11. balance for body to function
  6. 13. universe habitable by living organisms especially
Down
  1. 1. parts of Earth where life exists
  2. 2. cannot change
  3. 4. study of living organisms
  4. 5. example the black hole theory
  5. 6. comparing info by counting
  6. 8. how data changed overtime
  7. 9. example law of gravity
  8. 12. single celled life form