shape of a rain drop. formation of rain the sun heats water and turns it into vapor water condenses...
Post on 15-Jan-2016
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Shape of a Rain Drop
Formation of Rain
The sun heats water and turns it into vapor
• Water condenses and falls back to the earth in form of rain.
Water CycleWater Cycle
Water vapor in the air gets cold and forms clouds
Water falls back in the oceans, rivers and lakes.
H2O molecule
Raindrop
High air pressure More flattened
Low air pressure
More spherical
Surface Tension
0.5 mm 5 mm
>5 mm
Surface TensionSmall drops
Largedrops
The shape is determined by the relativeStrength of the surface tension forces which Tend to pull the drop back to a spherical shape.When the drops are very large, the surface Tension is completely overwhelmed and theDrops can be blown inside out.
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