Across
- 2. colourless and ordourless reactive gas
- 5. going or tending upward on a hill
- 6. remains after a fire
- 9. burnt to produces heat or power
- 10. to start burning
Down
- 1. the process of burning something
- 3. dangerous and could die
- 4. burning gas or vapour
- 7. a high temperature
- 8. destroyed by fire