Air, Wind, Clouds, and Weather

A wrapper of air

Long ago, people believed that the sky was a shiny metal roof stretched over the earth! Now, of course, we know what the sky really is. It’s simply air—a covering of air around the earth. Air is…

Is air something?

live without it. Almost every kind of animal and plant in the world must have oxygen or it will die. Only about one-fifth of the air is made up of oxygen. Most of the air—nearly four-fifths of…

Why is the sky blue?

I don’t suppose you happen to know Why the sky is blue? It’s because the snow Takes out the white. That leaves it clean For the trees and grass to take out the green. Then pears and bananas start to…

Where the air came from

Scientists think the earth’s atmosphere has changed during the billions of years since the earth was formed. At first, the atmosphere was probably very different from what it is now. It began to…