Scientific Method Crossword

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Across
  1. 3. A hypothesis that has been rigorously tested, never rejected
  2. 4. the outcome of the change of the independent variable
  3. 5. this type of group is manipulated in an experiment
  4. 6. an evidence based approach to understanding our world
  5. 8. a _____ organism is used in place of organisms that may be difficult to study
Down
  1. 1. the factor changed in an experiment
  2. 2. an educated prediction
  3. 7. this type of group is not manipulated in an experiment