Cause and effect

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Across
  1. 1. effect of friction
  2. 3. action A relates to action B
  3. 5. damage caused to metal
  4. 7. educated guess
  5. 8. step of the scientific method
Down
  1. 2. can lead to inaccurate conclusions
  2. 4. phrase expressing cause
  3. 6. an excessive amount of something