Energy crossword

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Across
  1. 3. It would be dark without it
  2. 5. Warms you up
  3. 6. Turns chemical every to electrical energy
  4. 7. Natural energy that can be used for sailing on ships
  5. 9. Found in batteries and food
  6. 10. Used a lot in homes to power things
  7. 12. Energy that comes from the sun in the form of heat
  8. 15. Energy from the sun
  9. 16. Converts wind and water to energies
  10. 17. Comes in lots of different frequencies
  11. 19. Energy produced from the sea
Down
  1. 1. Energy from movement
  2. 2. Causes lots of pollution
  3. 4. Attracts metal objects
  4. 5. A type of gas that is highly explosive
  5. 8. Stored up energy
  6. 11. Has high radiation levels
  7. 13. This type of energy is not used in Australia
  8. 14. Used to measure energy
  9. 18. Found in the ground and very expensive