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Lightning results from the buildup and discharge of electrical energy between positively and negatively charged areas.
Rising and descending air within a thunderstorm separates these positive and negative charges.

Lightning - Wikipedia


Lightning is a sudden electrostatic discharge that occurs during an electrical storm. .... Lightning is usually produced by cumulonimbus clouds, which have bases that are typically 1–2 km (0.6...

What is lightning? - science made simple


May 23, 2012 ... How is lightning formed? Water and ice move around inside the cloud; forced up by warm air currents, down by gravity, and compressed in the ...

NWS JetStream - How Lightning is Created


The conditions needed to produce lightning have been known for some time. However, exactly how lightning forms has never been verified so there is room for  ...

NASA - How Is Lightning Made?


Dec 9, 2007 ... He wanted to prove that lightning is a form of electricity. We know now that flying a kite in a storm is not safe. But, Ben was right. Lightning is a ...

Lightning - Weather Wiz Kids weather information for kids


Lightning is a bright flash of electricity produced by a thunderstorm. ... If you hear the sound of thunder, then you are in danger from lightning. Lightning kills and ...

What causes lightning? - Planet Science


Have you ever got a static electricity shock? Or seen sparks when you take off your jumper? When lightning is made the same thing happens, but on a much ...

www.ask.com/youtube?q=How Is Lightning Created?&v=jM8h60S1GsM
Aug 25, 2009 ... How lightning forms. Rob Mayeda ... Why does lightning occur when clouds rub together? What causes thunder ... How is it formed? - Duration: ...
www.ask.com/youtube?q=How Is Lightning Created?&v=4niTlOYYRYI
Apr 25, 2009 ... What is lightning made of? Why does lightning occur when clouds rub together? What causes thunder ... When Lightning Strikes Your Airplane.

How Lightning Forms | UCAR Center for Science Education


Lightning happens when the negative charges (electrons) in the bottom of the cloud are attracted to the ... Thunder is the sound caused by rapidly expanding air.