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  1. 1.  If you go further into the Earth’s surface and through the atmosphere, the pressure decreases. There are fewer gas molecules as you go up. That’s why the pressure decreases. The result is that the ascending air is expanded, and then cooled. Creating the process of Adiabatic Temperature changes.
  2. 2.  Orographic lifting is when elevations, like mountains shield air flow. This can happen because air goes up a mountain slope, then adiabatic cooling plays it’s part in making clouds and precipitation. When the air gets to the leeward side of the mountain, a great amount of the air’s moisture is lost, because it was already used up on the other side of the mountain.
  3. 3.  When masses of warm air and cold air combine, they create a front. The colder air acts like a wall that the warmer air can’t get pass, so it rises upward and over the wall of cool air. When this happens, clouds form and condense, creating the process, frontal wedging.
  4. 4.  Convergence is when the wind moves and ends up in a horizontal inflow of air into an area. Then, convergent winds that are at a lower level meet with the motion. Air rises and clouds form. An example of convergence is when a cloud hovers over a certain area and makes the converging winds collide, then they rise upward, toward the cloud; creating the process of convergence.
  5. 5.  Localized convective lifting is when unequal heating of the earth’s surface causes sections of air to be warmed. This happens when the air is filled with water vapor and it rises to the location where cooler temperatures are and that forms condensation. It almost repeats in a cycle, as you can see in the picture to the right.
  6. 6.  An example of Stability is when cool air moves over a warmer area, then the warm surface heats up from the air that is below it. As a result, it will create an air mass that is actually less stable as the temperature changes. Density differences are when there is a change between the density and the water vapor is in the air.
  7. 7.  Condensation is the part of the weather cycle that rain drops evaporate from a body of water upward into the air and form clouds. Condensation is the second stage in the water cycle. Condensation takes place after water evaporates into the air.
  8. 8.  Cumulonimbus: Thunder clouds Cirrostratus: Thin and wispy Cirrus: Very thin, could look curly Cirrocumulus: Fluffy and small Altostratus: Very wavy looking Altocumulus: Fluffy and are medium sized Stratocumulus: Flat and wide on the bottom and fluffy on the top. Cumulus: Your regular fluffy cloud Stratus: Layered from thick to thin.
  9. 9.  They could reach heights from 16,500 ft, to 45,000 feet into the air at mid latitude. When they reach this level, they are made out of ice crystals The clouds that could very well be in this level are cirrus, cirrocumulus, and cirrostratus
  10. 10.  These clouds could reach heights from 6,500 ft, to 23,000 ft in the air. In the level below high clouds, these clouds could possibly be made of ice crystals, but are mostly made up of water droplets. Some of the clouds that form at this level could be altocumulus, altostratus, and nimbostratus.
  11. 11.  Low clouds can reach heights from 2,500 ft to 8,000 ft into the air In the lowest level, they form from humidity that is held in the air and by water droplets that condense into these clouds. The clouds that are in this level are the common cumulus and stratus clouds.
  12. 12.  They are clouds that are vertically formed and they are usually dark looking or stormy looking clouds. They actually look very unusual compared to other clouds
  13. 13.  Fog is basically water droplets that form and condense, creating a mist in the Earth’s surface. It disappears when it reaches a certain cool, saturation point.
  14. 14.  Cold cloud precipitation is when precipitation happens and water descends down from the clouds, but it’s really cold. This is because the temperature has changed within the cloud to a lower temperature.
  15. 15.  Warm air precipitation is when precipitation happens and water descends down from the clouds, but it’s really warm This happens because the humidity that is trapped inside the clouds is really warm, so when it rains, you get warm cloud precipitation.
  16. 16.  Rain, snow and sleet are various types of precipitation that can happen within a cloud. If the temperature is warm, the cloud precipitates rain, and if the temperature is cold, the cloud precipitates snow.
  17. 17.  Sleet, glaze, and hail are also different forms of precipitation. Sleet and hail are similar, but hail usually comes in thunder storms. Sleet can sometimes comes when it’s raining.