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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

en.wikipedia.org/wiki/Lightning

[edit]. A downward leader travels towards earth, branching as it goes. Lightning ...

What is lightning? - science made simple

www.sciencemadesimple.co.uk/activity-blogs/lightning

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 ...

NASA - How Is Lightning Made?

www.nasa.gov/audience/forstudents/k-4/home/F_What_Causes_Lightning_Flash.html

Aug 19, 2004 ... 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

www.weatherwizkids.com/weather-lightning.htm

Thunder is caused by lightning. When a lightning bolt travels from the cloud to the ground it actually opens up a little hole in the air, called a channel. Once then ...

Lightning Formation - Windows to the Universe

www.windows2universe.org/earth/Atmosphere/tstorm/lightning.html

May 27, 2010 ... The sky is filled with electric charge. In a calm sky, the positive (+) and negative (- ) charges are evenly spaced throughout the atmosphere.

How Lightning Forms | UCAR Center for Science Education

scied.ucar.edu/webweather/thunderstorms/how-lightning-forms

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.

www.ask.com/youtube?q=How Is Lightning Formed?&v=4niTlOYYRYI
Apr 25, 2009 ... How is it formed? ... NatGeo lightning documentary - Duration: 46:54. ... how lightning works - Duration: 5:07. adamsuydam 216,753 views. 5:07.

Lightning Physics

regentsprep.org/regents/physics/phys03/alightnin/

Lightning Physics. Lightning is caused by the build up of electrostatic charge in clouds. One region within the cloud builds up a positive charge and the other a ...

Physics Q & A - The formation of lightning - Physics.org

www.physics.org/explorelink.asp?id=3442

We can describe the process of lightning, but many phenomena of lightning have not been explained. According to observation, the upper part of a cloud carries ...

Popular Q&A
Q: How is lightning formed?
A: The negative charge of the base of the cloud gives the earth a positive charge. When the electrical potential reaches approximately ten thousand volts - More? r... Read More »
Source: www.kgbanswers.com
Q: How is lightning formed?
A: Lightning is simply a static discharge. The charges grow in the clouds as a result of various particles such as snow flakes, hailstones and rain drops striking ... Read More »
Source: answers.yahoo.com
Q: How is lightning formed?
A: when atoms in the air rub against each other and get positively charged they form lightning. Read More »
Source: answers.yahoo.com
Q: How is lightning to form?
A: when there's a storm cloud and there's lots of particles moving and rubbing against each other, there's static electricity. the cloud builds up lots of negative... Read More »
Source: wiki.answers.com
Q: How is lightning formed?
A: In normal conditions there is in the atmosphere a balance between positive and negative charges, where the ground is more negatively charged than the air and th... Read More »
Source: www.at3w.com