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Atmosphere

how fast can winds blow
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How Fast Can Winds Blow?

How Fast Can Winds Blow? In the United States, most winds average eight or twelve miles an hour near the ground. At this speed, papers blow

how are hailstones formed
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How Are Hailstones Formed?

How Are Hailstones Formed? Hailstones are balls of ice that fall from storm clouds. Hail is a type of precipitation, or water in the atmosph

What is air made of
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What Is Air Made of?

Air is the mixture of gases in our atmosphere. It is mainly nitrogen (seventy eight percent) and oxygen (twenty one percent). The rest is ch