Across
- 1. change in form or apperance
- 5. combination of different substances
- 6. burning of fuel in presence of oxygen
- 7. enters into a chemical reaction
- 8. movement within a fluid
- 10. soild particules that become airborne
- 13. made up of only carbon and hydrogen
- 14. is uniform throughout
- 16. air pollutant formed when nitrogen oxides and hydrocarbon fue molecules are activated by UV rays
- 18. isn't uniform throughout
- 19. process of glucose and oxygen as inputs and carbon dioxide,water,energy as outputs
Down
- 1. formed by chemical reaction
- 2. change in combustion, also known as chemical reaction
- 3. weather condition,prevents convection
- 4. matter made up of a single molecule
- 9. transform light energy into chemical energy
- 11. reacts with oxygen to produce light and heat
- 12. Volatice Organic Compunds
- 15. a gas made up of three oxygen molecules
- 17. forms as a product of combustion