Sure, clouds may appear as though they're made of fluffy cotton, but what are they really made of?

Although cumulus clouds look like big fluff balls floating in the sky on a nice day, they're still comprised of water and appear white because they're reflecting the light of the sun. Gray clouds are so full of water that they don't reflect light, making the sky look dark and ominous.

Asked by Rachel Bortles · Last updated 5 years ago · 255.7K views · SOURCE