As in the photo above, cloud-to-ground lightning usually occurs near the boundary between the updraft region (where the darkest) clouds are, and the downdraft/raining region (with the lighter, fuzzy appearance). Sometimes, however, the ligh...
http://www.weatherquestions.com/What_causes_lightning.h...
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What causes lightning? Click to enlarge image; When water evaporates from the surface of earth from lakes, land, river, streams, ocean, ponds and from trees by transpiration, this rises into the atmosphere in the form of a gas by convection.
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www.myuniversalfacts.com/2006/03/what-causes-lightning....
www.myuniversalfacts.com/2006/03/what-causes-lightning.html
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Weather Wiz Kids is a fun and safe website for kids about all the weather info they need to know. It contains tools for weather education, including weather games, activities, experiments, photos, a glossary and educational teaching materials for the classroom. ... Welcome to Weather Wiz Kids®. ... LEONID METEOR SHOWER...
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Summary: As clouds get bigger with the continuous rising of air, they interact with particles of ice and dirt to create a buildup of static electricity. Learn about the interaction of electrical charges in a cloud with charges on the ground...
http://www.ehow.com/video_4872173_what-causes-lightning...
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During thunderstorm conditions the turbulence in the cloud causes the charges to separate in such a way that the negative charges concentrate in the base of the cloud. Since like charges repel, some of the negative charges on the ground are pushed down away from the surface, leaving a net positive charge on the surface.
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www.mos.org/sln/toe/lightning.html
www.mos.org/sln/toe/lightning.html
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How is lightning made? People used to make up stories to answer that question. Today, science tells us how. You have heard of Ben Franklin. Did you know he flew a kite during a thunderstorm? He wanted to prove that lightning is a form of electricity. ... Adapted from What Causes a Lightning Flash?
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www.nasa.gov/audience/forstudents/k-4/home/F_What_Cause...
www.nasa.gov/audience/forstudents/k-4/home/F_What_Causes_Lightning_Flash.html
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Lightning in a thunderstorm occurs because the freezing process that takes place at upper levels of the storm separates positive and negative charges. The action of rising and descending air in the updrafts and downdrafts of the storm separ...
http://www.fcgov.com/oem/lightning-cause.php
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Scientist are not really sure of what causes Lightning but they do know that Lightning results when electricity travels between two clouds, or between a cloud and the ground.
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volweb.utk.edu/school/sumnercs/ellism/whcl.htm
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A flash of lightning happens when a charge becomes so strong that the air can’t stop it from jumping from the cloud to the ground, which has a positive charge. Lightning can also form inside the cloud, moving between the positively and negatively charged areas. ... More on What causes lightning from Fact Monster:
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www.factmonster.com/ipka/A0920934.html
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