Ask Keith: How does lightning form?

5:20 PM, Jul 26, 2012   |    comments
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(NEWS CENTER) -- Keith Carson answers the questions, "How does lightning form, and does thunder always accompany lightning strikes?"

How lightning forms all has to do with negative charges and positive charges. In this video, Keith explains how those charges combine in clouds to cause lightning. Also, he'll tell you how hot lightning is. And he will let you know how you can tell how far away you are from lightning when you hear a thunder boom.


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