Energy

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Across
  1. 6. to turn around, to take turns in sequence
  2. 7. a central or essential part around which other parts are gathered, a core
  3. 8. to set off or intitiate
  4. 9. to transport from one place to another; to transmit or make known
Down
  1. 1. one part of a system or whole
  2. 2. the process of burning
  3. 3. to spread or flow throughout; to pass through or penetrate
  4. 4. the point of origin or creation
  5. 5. of, or relating to, the sun