Susan Beamish
Science
December 5th 2011
Thunderstorms
Long ago, it was not clear why thunderstorms occurred. Greeks believed their mighty perfection, Zeus, would hurtle a lightning bolt from his master bolt. Vikings believed that their god of weather, Thor, would strike his mighty hammer against an anvil, creating thunder and lightning. Native Americans believed the flutter of the wings and feather of their mighty thunderbird created lightning (Simon). Scientists now know forthwith how clouds, lightning, and thunder form.
Forming clouds is the first step in the process of a thunderstorm. Most of the water vapor in the atmosphere comes from the ocean. irrigate vapor is a result of water evaporating. Kinetic aptitude causes evaporation because the water molecules move all the time and it allows them to break open free. Once the water breaks free, it needs to condense onto the dust referenceicles in the atmosphere. In order for this to happen, the pass around temperature must reach its dew breaker invest. Dew point is when the air becomes saturated allowing the water vapor to condense. The air reaches its dew point with expansion.
Expansion is when masses of air move upwards and the air molecules cool (Galiano 8-16). Thunderstorm clouds are called cumulonimbus clouds. They are swart and puffy and are located in the lower, middle, and upper part of the troposphere (Weather Prediction Education). Cumulonimbus clouds can reach as last as 50,000 feet and cover up to 200 square miles (Xdude Meteorology).
Spector 2
Lightning begins with boisterous moving of deoxyephedrine crystals and raindrops in cumulonimbus clouds (Simon). When water forms deep down the storm cloud, strong winds hurtle the water up to the earn of the cloud. Next water forms into huge lumps of ice called hail. When the hail collides with ice slivers it creates positive and forbid charges, positive in the top of the clouds and negative in the bottom of the cloud. The...If you want to get a practiced essay, order it on our website: Orderessay
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