Across
- 3. Combustion with plenty of oxygen
- 4. Part of the fire triangle, provides thermal energy
- 8. Rain that has been acidified
- 10. Warming of the Earth caused by greenhouse gasses absorbing energy emitted by the Earth and re-emitting it back to the surface
- 11. a substance that can harm the environment or the organisms that live there
- 13. Part of the fire triangle, a gas
- 15. A greenhouse gas produced in complete combustion (2 words)
- 16. Combustion with a lack of oxygen
- 18. a metal that turns green when it reacts with oxygen
- 19. A form of carbon produced during incomplete combustion
- 20. Acidic gas formed by oxygen reacting with sulfur (2 words)
- 21. A type of greenhouse gas. Used in Bunsen burners
Down
- 1. Global warming is an example of this (2 words)
- 2. A type of converter in the exhaust of cars to change harmful gases into less harmful gases
- 5. Something used to put out a fire
- 6. Gasses that contribute to global warming (2 words)
- 7. Part of the fire triangle, usually a hydrocarbon
- 9. A burning reaction
- 12. Acidic gas formed by oxygen reacting with nitrogen (2 words)
- 14. Reacting with oxygen
- 17. A poisonous gas produced in incomplete combustion (2 words)