science steps of the scientific method

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Across
  1. 4. to do something again
  2. 5. complete backround ?
  3. 7. ? your hypothesis
  4. 8. form a ?
Down
  1. 1. develop a ?
  2. 2. observe and state the ?
  3. 3. collect and anylize the ?
  4. 6. another word for ending