Across
- 1. ozone layer
- 3. produces carbon dioxide
- 4. a continuous process
- 5. water flows into streams
- 12. drives the water cycle
- 13. ionized gasses
- 15. provide data that analyzes air masses
- 17. glowing fuzzy line around the earth
- 20. we get this from food
- 21. cold air mass
- 22. water changes from liquid to gas
- 24. pulls water underground
- 25. harmful and come from the sun
- 26. 21 percent of the atmosphere's gasses
Down
- 2. mainly nitrogen and oxygen
- 4. water vapor changes to a liquid
- 6. dry air mass
- 7. the slow wearing down of rocks
- 8. plants lose water through leaves
- 9. moist air mass
- 10. shooting stars
- 11. use charts and graphs to predict the weather
- 14. a form of energy that travels in waves
- 16. pressure is a vacuum
- 18. scours rocks like sandpaper
- 19. rain, snow, sleet, hail
- 23. clear gas