Across
- 3. - The conversion of a substance into vapor
- 4. Visible, hot part of a fire
- 7. A fine spray or light fog
- 8. - A vital element for combustion and respiration
- 9. - The process of a liquid turning into a vapor
- 10. The process of burning
- 12. What remains after something burns
- 14. A tiny flash of light or heat, often starting a fire
- 15. What we breathe and is necessary for combustion
- 17. What allows us to see and comes from sources like the sun or bulbs
- 20. What rises from fire, often causing irritation
Down
- 1. - The process by which plants make food from sunlight
- 2. - The movement of heat through fluids (like air or water)
- 5. A small, glowing piece of coal or wood in a dying fire
- 6. Water vapor formed when heated
- 11. Absence of light
- 13. - Emission of energy in the form of waves or particles
- 16. A soft, steady light
- 18. A state of matter, like oxygen or carbon dioxide
- 19. What you feel from a fire or the sun