How do the clouds stay up in sky and how does sky not fall?

Question

How do the clouds stay up in sky and how does sky not fall?

Answer 1

the sky is air. it isnt a solid or something. it is air on top of air on top of air. it is pushing down on everything from the weight of itself. it doesnt fall because there is something there preventing it.(more air)

clouds stay up because the water vapor is light enough to stay up.

make it a good day.

Answer 2

Clouds stay up in the sky because the gravitational force acting on them is very weak. The sky does not fall because particles in the atmosphere have a very small mass. All of this has to do with the fact that gravity will only bring matter to the surface if it is massive enough.

Answer 3

Clouds form when warm, moist, air rises to a sufficient altitude that the surrounding air is colder than the dew-point of the warmer air mass. The resulting condensation forms a cloud, which is still warmer, and hense less dense, than the surrounding air. The difference in density creates buoyency, which is "how the clouds stay up in the sky".

Note that at some altitude the top of the cloud will lose enough heat to the surrounding air so as to no longer be less dense than the air around it. That effect determines where the top of the cloud is.

And of course clouds do not always stay up in the sky. Sometimes it rains.

A somewhat boring and complicated explanation can be found here:

http://asd-www.larc.nasa.gov/edu_act/clo...

As for the sky not falling... it does. Air has mass and the Earth's gravity attracts that mass. The result is the air (sky) does fall to earth, instead of escaping into outer space. Good feature that. All that air falling to earth causes atmospheric pressure, about 14.7 pounds of it per square inch at the surface, decreasing as you go higher in altitude. That 14.7 pounds of pressure is simply the weight of a column of air one inch square extending from the ground to the upper limits of the atmosphere,

Answer 4

"How do the clouds stay up in sky"

Clouds are water vapor which is lighter than air and rise until air pressure and the inversion layer keep them at a particular altitude.

"how does sky not fall?"

Sky is all around us. It is called "air"