scientific method

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Across
  1. 4. life
  2. 5. the study of space and earth
  3. 8. educated guess
  4. 9. concerned with the nature and properties of matter and energy
  5. 12. to test your hypothesis to see if it is correct
  6. 13. something that is always true in nature
  7. 15. is changed to observe what happens to the dependant variable
Down
  1. 1. something based on knowledge
  2. 2. to carefully watch
  3. 3. factor observed during an experiment
  4. 6. the end of and event or process
  5. 7. factors in an experiment that stay the same
  6. 10. the study of natural events
  7. 11. the study of living organisms
  8. 14. to examine results