Across
- 2. A depletion of the protective sun layer
- 4. Highly reactive gases made of three oxygen atoms
- 7. it takes two hydrogen and one _____ to make water
- 9. home of the ozone layer
- 10. Rain,snow,sleet, and hall
- 11. Space rock
- 13. A chemical found in most chlorine that causes the depletion of the ozone layer
- 14. Where the meteors burn
- 15. A moon or machine that orbits the planet
- 16. The layer located in the stratosphere that protects humans from the sun
Down
- 1. An aircraft for transportation
- 3. The furthest layer from earth
- 5. A group of gases surrounding the earth
- 6. Earth's southernmost continent
- 8. The closest layer to earth
- 12. The hottest layer
