Scientific investigation

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Across
  1. 1. If we control all of the control variables our investigation will be this
  2. 6. we do this to the dependent variable
  3. 7. The variable which we change
  4. 9. An idea which we can test
  5. 12. the experiment that we do before the main investigation
  6. 15. The smallest measurement on a piece of apparatus
  7. 16. Something which can harm us
Down
  1. 2. The equipment which we use
  2. 3. risk _______________, done to stay safe
  3. 4. Used to measure temperature
  4. 5. Always include this (and a label) in table headings and on graph axis
  5. 8. The variable which we measure
  6. 10. Used to measure angles
  7. 11. An odd result
  8. 13. We calculate this to make results more reliable
  9. 14. A variable that must be kept the same