Across
- 3. front cool air mass pushes under a warm air mass
- 4. mass large body of air with temperature and moisture
- 7. measurement of the distance above sea level
- 8. winds large, circular belts around the earth
- 11. layer of the atmosphere closest to the earth
- 13. front no movement when air masses meet
- 14. measures the speed of the wind
- 16. thin blankets of gas that surround the earth
- 19. easterlies winds blow eastward from poles
- 20. upper layer of the stratosphere
- 21. contains weather and comm. satellites
- 22. an instrument used to measure air pressure
- 23. vane an instrument that shows the direction of the wind
Down
- 1. winds influence by temperature changes in a small area
- 2. moving air
- 5. boundary between two masses of air
- 6. shields the earth from the sun
- 9. layer of atmosphere farthest from the earth
- 10. condition of the atmosphere at any moment
- 12. front warm air moves over a slower cool air mass
- 15. most meteors are burned up in this layer
- 17. winds blow from the east toward the equator
- 18. westerlies winds blow northward from west