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Across 1. puffy clouds that usually occur below 2000 meters 2. short term variations in atmospheric phenomena that interact and affect the environment 5. a narrow region between two air masses of different densities 7. a large volume of air that has the same characteristics as the place it formed 8. are the permanent east-to-west prevailing winds that flow in the Earth's equatorial region (between 30°N and 30°S latitudes). They are also called easterlies. 12. the transfer of thermal energy between objects when their atoms collide 14. measures wind speed 15. the layer 50 to 85 km above the Earth’s surface, air temperature decreases with altitude 16. the study of the dynamics of atmospheric phenomena 18. the change in pitch or frequency that occurs due to the motion of a wave (sound/light) as it moves toward or away from an observer 23. line on a weather map connecting areas of equal pressure 24. rain, snow, sleet, hail 25. layered sheet-like clouds that can cover much of the sky in a given area below 2000 meters 28. the amount of water vapor in a volume of air cannot hold any more water 29. measures temperature 30. a narrow band of fast wind 31. the layer closest to the Earth’s surface, contains most of the mass of the atmosphere 32. global wind system that lies between 300 and 600 north and south latitudes, where surface air moves towards the poles in an easterly direction

Down 1. the transfer of thermal energy by the movement of heated material from one place to another 3. amount of water vapor in the atmosphere at a given location on Earth’s surface 4. the outermost layer of Earth’s atmosphere 6. is the temperature to which air must be cooled at constant pressure to reach saturation 9. balloon-borne weather instrument whose sensors measure air pressure, humidity, temperature, wind, speed and wind direction of the upper atmosphere 10. line on a weather map connecting areas of equal temperature 11. measures humidity 12. long term average variations in weather for a particular area 13. the layer 85 to 600 km above the Earth’s surface, absorbs solar radiation 17. wispy clouds that occur above 6000 meters 19. results in fluids and objects moving in a curved path 20. global wind systems that lie between latitudes 600 N and 600 S and the poles and is characterized by cold air 21. a layer in the earth's stratosphere which absorbs most of the ultraviolet radiation reaching the earth from the sun. 22. the layer in which the air temperature mainly increases with altitude and contains the ozone layer 26. the transfer of thermal energy by electromagnetic waves 27. measures air pressure