Lightning and thunder can look scary, but they are natural events caused by electricity in the sky. This topic is popular because children often ask why lightning flashes first and thunder comes later.
Lightning happens during storms when clouds are full of electric charge. Thunder is the sound we hear because of lightning.
How lightning is formed
Inside storm clouds:
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Tiny water drops and ice pieces bump into each other
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This creates electric charges
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Positive and negative charges build up
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When the charge becomes too strong, electricity suddenly moves
This quick movement of electricity is called lightning. It can happen inside clouds, between clouds, or between a cloud and the ground.
What causes thunder
When lightning flashes:
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It heats the air very quickly
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The hot air expands suddenly
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This creates a loud sound called thunder
We see lightning first because light travels faster than sound. Thunder reaches our ears a little later.
Is lightning dangerous?
Lightning can be dangerous, which is why people should:
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Stay indoors during storms
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Avoid standing under trees
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Stay away from water and metal objects
Scientists use weather tools and satellites to warn people before strong storms arrive.
Why kids should care
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Storms are part of Earth’s weather system
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Understanding lightning reduces fear
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Science explains natural events around us
Teachers say learning about lightning helps children understand electricity, sound and weather together.
Fun fact
You can count seconds between lightning and thunder to guess how far the storm is — every 3 seconds equals about 1 kilometre away!
In short: Lightning is electricity in the sky, and thunder is the sound made when lightning heats the air.
Learning takeaway: Nature may look powerful and noisy, but science helps us understand it and stay safe. ⚡🌩️
