Why are clouds white and the sky blue?

[Bretrick]

Something about air molecules being scattered

 

[ohioboy]

Blue has the shortest light wavelength. When you see a Rainbow or Sunbow after a rain storm, the rain acts like a Prism that permits different colors of the Spectrum to be visible. Under ordinary weather, Blue is predominate.

 

[ohioboy]

Blue has the shortest light wavelength.

Correction, according to this chart violet has the shortest wavelength.

What Is the Visible Light Spectrum?

 

[Warrigal]

If I could change the topic to "Where are clouds white and the sky blue?", my answer would, more often than not be, "Over Sydney. It's one of the things I love about my hometown.