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"During a storm, thunder is caused by the rapid expansion and contraction of the air surrounding a lightning bolt. The incredible heat of a lightning bolt (nearly 50,000 degrees Fare height) causes the air around the bolt to become super heated.

Thus, the air suddenly expands, in less than a fraction of a second. However, the air cannot stay super heated very long. The heat dissipates quickly through the air, causing compression waves that we hear as thunder."

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14y ago

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