Energy...

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Across
  1. 4. When water boils
  2. 6. From subsoil
  3. 10. Water power
  4. 11. Sliding motion
  5. 14. Rotor movement
  6. 16. Substance reaction
Down
  1. 1. Atom power
  2. 2. Ready to be used
  3. 3. Compressed air
  4. 5. Linked with temperature
  5. 7. Linked with machines
  6. 8. Most used at home
  7. 9. Linked with movement notion
  8. 12. Transform mass into a force
  9. 13. From the sky
  10. 15. Sailing boat power