Everyday Science, Everyday Wonder
Simple questions, smart answers.
Have you ever thought of the Earth as a living thing?
Just like we breathe in and out, the Earth also “breathes.”
This breath is the movement of air all around the planet – what we call wind.
But why does the wind blow? And what is wind, really?
Simply put, wind is moving air.
It All Starts with the Sun
The Sun does not heat the Earth evenly.
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Near the equator, the sunlight is strong and heats the air a lot.
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Near the poles, the sunlight is weaker and the air stays cooler.
Warm air becomes light and rises.
Cool air is heavier and sinks.
When warm air rises, it leaves an empty space, and cooler air rushes in to fill it.
This movement creates a difference in air pressure – and air always moves from high pressure to low pressure.
That movement is the wind!
The Earth’s Spin Changes the Wind
The Earth is spinning all the time.
Because of this, wind doesn’t move in a straight line.
It bends and curves around the globe.
This effect is called the Coriolis Effect.
How a Typhoon Forms
When wind becomes very strong, it can form a storm like a typhoon.
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Warm ocean water makes lots of water vapor rise.
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Rising air creates very low pressure.
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Surrounding air rushes in and starts spinning.
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A giant swirl of air and clouds – the typhoon – is born!
📌 In Short
Wind is the air moving to balance the differences in pressure created by the Sun’s heat.
It is the Earth’s way of keeping the atmosphere in balance – and we feel it every day.
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