lesson 13

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Across
  1. 2. A testable prediction, often implied by a theory
  2. 5. flawless
  3. 6. to light up
  4. 7. operated by the pressure of a fluid
  5. 8. the killing of one person by another
  6. 10. a food served either before a meal or with drinks
Down
  1. 1. to set on fire
  2. 3. agent that induces sleep
  3. 4. not having life; without energy or spirit
  4. 9. blocked path; dilemma with no solution