Across
- 3. front the boundary of an advancing mass of warm air
- 4. front the boundary of an advancing mass of cold air
- 8. the movement caused within a fluid by the tendency of hotter and therefore less dense material to rise,
- 9. the gaseous envelope surrounding the earth; the air.
- 14. layer above the troposphere
- 17. layer that contains a high concentration
- 19. a colorless, odorless flammable gas that is the main constituent of natural gas.
- 20. vapor can be produced from the evaporation or boiling of liquid water or from the sublimation of ice.
- 21. layer between the stratosphere and the thermosphere
- 22. humidity the amount of water vapor present in air
- 24. the emission of energy as electromagnetic waves or as moving subatomic particles
- 26. point the atmospheric temperature below which water droplets begin to condense
Down
- 1. an artificial body placed in orbit around the earth or moon or another planet in order to collect information or for communication
- 2. front a composite front produced by occlusion.
- 4. storm types of hurricanes
- 5. radar a radar tracking system
- 6. the process by which heat or electricity is directly transmitted through a substance
- 7. pressure a condition of the atmosphere in which the pressure is below average
- 10. lowest layer of earth
- 11. rain sleet snow hall anything that falls to earth
- 12. front is a pair of air masses, neither of which is strong enough to replace the other
- 13. the outer layer of the atmosphere
- 15. the layer above the mesosphere
- 16. pressure a condition of the atmosphere in which the pressure is above average
- 18. heat, dryness, sunshine, wind, rain, etc.
- 23. mass a body of air with horizontally uniform temperature, humidity, and pressure.
- 25. absorbs most of the ultraviolet radiation reaching the earth from the sun.