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How heavy is the sky?
Brains On! Science podcast for kids
The Earth Is 196,900,000 Times Over.
The average weight of the air pressing down on us is about 15 pounds for every square inch of the Earth's surface. Imagine squeezing the weight of a bowling ball or a medium-sized cat who farts onto two postage stamps. That's a lot of weight pushing down on a very small amount of space. And there are 4,014,489,600 square inches in one square mile.
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