Tag Archives: Water Vapor

What are clouds made of?

Pluffy dark clouds and fluffy white clouds—all clouds are made of the same thing.  They are made mostly of tiny droplets of water drifting about on currents of air.  Water to make clouds comes from oceans, lakes and streams. Everywhere water is continually evaporating into the air in the form of an invisible gas called …

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What is the earth’s atmosphere?

The atmosphere is the great  ocean of air enveloping the earth.  it extends up for hundreds of miles. You and I live at the bottom of a great ocean of air that surrounds the earth and that extends upward for hundreds of miles.  We call it the atmosphere. We could not live without it and …

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Why does a fire smoke?

We’ve all see smoke rising from a bonfire or the chimneys of factories and houses. When a log in a fireplace burns, some of the burning wood is changed into invisible gases.  These hot gases, which consist mostly of water vapor and carbon dioxide.  Are very light.  They rise up the chimney and drift away …

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What causes rain?

You know rain falls from clouds.  Have you ever wondered how raindrops happen to be in clouds? Moisture is constantly evaporated from the earth’s surface by the warmth of the sun.  the invisible water vapor is carried upward by currents of warm, rising air.  As the moisture-loaded air rises it cools. As the air cools, …

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