Physical and chemical change

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Across
  1. 2. melting of ice
  2. 4. sublimable substance
  3. 7. method to prevent rusting
  4. 8. cooking of food
  5. 9. reddish brown layer on iron
  6. 10. dissolving of solid in liquid
Down
  1. 1. burning of fuels
  2. 3. gas to liquid
  3. 5. bursting crackers
  4. 6. germination of seed