2007-09-02 13:11:44 · 5 answers · asked by arigont 2 in Science & Mathematics ➔ Physics
Ships float and there's gravity.
When the droplets of water get too large they fall.(rain)
2007-09-02 13:18:41 · answer #1 · answered by Anonymous · 0⤊ 1⤋
The particles of moisture that make up the clouds are VERY small. When particles of matter are small and light enough, the become "aeresol" and can be kept up by even the slightest breeze. That's why you can see dust floating in sunlight, and smog in the sky over a city.
You may already know that the moisture in the air comes from the evaporation of water from oceans, rivers and lakes. As the moisture rises into the air, it gets cooled at higher altitudes. As it cools, it condenses into droplets, in a similar fashion that moisture in your house condenses on the outside of a cold glass.
When enough droplets condense and come together, then they become heavy enough to fall.
You've seen fog hang around near the ground. Fog is just low clouds.
2007-09-02 20:22:41 · answer #2 · answered by Vince M 7 · 1⤊ 1⤋
Clouds float in air of higher density, just as air floats over water and water is abobe ground, ships float in water etc.
2007-09-02 20:19:04 · answer #3 · answered by Swamy 7 · 0⤊ 1⤋
They consist of water vapour (gas) and, as water has a molecular mass of 18... (2(H) + 1(O)), then the water vapour is lighter than air which has a molecular mass of about 29...(79% of N2 =22) + (21% of O2 = 7)... heavier than 18
2007-09-02 20:31:17 · answer #4 · answered by Norrie 7 · 0⤊ 1⤋
Airplanes & jets much amaze you
2007-09-02 20:19:14 · answer #5 · answered by jon_mac_usa_007 7 · 0⤊ 2⤋