Across
- 4. where ozone layer exists
- 7. layer of atmosphere where the space station
- 8. envelope of gases that surround the planet
- 12. where we live
- 13. rain falling
- 15. outer layer of thermosphere
- 17. harmful substances in the air, water, or soil
- 18. cold pretty
- 19. form of oxygen that has 3 oxygen atoms
Down
- 1. water in the form of a gas
- 2. movement of air caused by warm air rising
- 3. middle layer of atmosphere.
- 5. trapping of heat near Earth’s surface
- 6. instrument used to measure air pressure
- 9. water leaving
- 10. condition Earth’s atmosphere at a particular
- 11. water forming
- 14. white in sky
- 16. hard storm
- 17. weight of a column of air pushing on an area