Across
- 1. form of matter
- 9. layer of atmosphere where weather occurs
- 10. measures pressure
- 11. fast-moving air current (2 words)
- 12. longest day/night of the year
- 13. path of planet or other space object
- 15. anything with mass
- 17. how much mass is inside of a space
- 20. to predict weather
Down
- 2. atmospheric layer above mesosphere
- 3. requirement or limitation
- 4. to make smaller; squeeze
- 5. large body of air (2 words)
- 6. measures humidity
- 7. study of weather
- 8. effect caused by certain pollutants
- 14. light beyond red on color spectrum
- 16. layer of air that surround our planet
- 18. warm year in pacific (2 words)
- 19. completely empty; outer space