Scientific method

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Across
  1. 2. Result
  2. 4. why something happens
  3. 8. variable constant
  4. 9. variable measured
  5. 10. proof
Down
  1. 1. variable manipulated
  2. 3. Justification
  3. 5. step by step instructions to an experiment
  4. 6. what makes something happen
  5. 7. answer to the scientific question
  6. 9. observations collected