Rafa's crossword puzzle

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Across
  1. 2. The thing you test in an experiment
  2. 4. An explanation of observations or events
  3. 5. A tool used to organize data
  4. 6. Thinking Comparing what you already know with the information you are giving
  5. 8. The act of using one or more of your scenes
  6. 11. A possible explanation for an observation
  7. 13. The things you keep the same in an experiment to make sure that the independent variable is the reason for the experiment results
Down
  1. 1. A role that describes a pattern in nature
  2. 3. The things you measure in an experiment
  3. 6. A group in a scientific experiment where the independent variable is not used for an experiment
  4. 7. The system of independent science
  5. 9. The investigation and exploration of new information
  6. 10. The practical use of scientific knowledge
  7. 12. The system of units used in science