What Is the Science Behind Thunder?

Thunder is the sound of lightning. When lightning strikes, it heats up the air really fast, making it expand and push out like a balloon being blown up, boom! Then the air cools down quickly, creating a wave that travels to your ears, making you hear thunder. It often sounds far away because the sound takes time to reach you.

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Examples

  1. Imagine blowing up a balloon really fast, that’s what happens to the air when lightning strikes.
  2. It's like someone dropped a big rock into a lake, making ripples that reach your ears later.
  3. Thunder is the sound of the sky letting out a loud sigh after a lightning strike.

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