Scientific Method Crossword Puzzle

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Across
  1. 2. The sum of an experiment
  2. 4. The first step in the scientific method
  3. 7. Part of three other words that can change
  4. 9. The only variable you change in an experiment
  5. 10. An expert in the study of different sciences
  6. 11. A test or investigation
  7. 12. It is an educated guess to a question
Down
  1. 1. Changes accordingly to independent variable
  2. 3. A variable that is always kept the same
  3. 5. Facts and results of and experiment
  4. 6. Watched in order to gain information
  5. 8. A set of steps that help many scientists