Hydrogen Banger

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Across
  1. 2. flask
  2. 5. Electricity
  3. 7. H20
  4. 8. Spark
  5. 11. Pop
  6. 12. Elements
  7. 14. Negativitly
  8. 15. Charged
Down
  1. 1. Glass
  2. 2. tube
  3. 3. Electrodes
  4. 4. Odourless
  5. 6. cone
  6. 9. H20
  7. 10. cable
  8. 11. rubber
  9. 13. Gas
  10. 14. power