If raindrops are transparent, why are clouds white?

The same way, the clouds look orange or red near sunrise or sunset when the only light refracting in the atmosphere is orange or red but in the middle of the day when all wavelengths are present they look white. read more

That is why the white stuff are actually seen as the color of the light shining on them. For instance if you take a white sheet of paper and shine yellow light at it, it looks yellow. read more

In this months Physics World there is an article about bread, which mentions amongst other things that white bread is transparent when you look at the strands of gluten under a microscope. Only the bulk scattering gives the white appearance, for the same reason. read more

They look to us a lot like they reflect light. Light that shines on them bounces off, and when we’re looking at the bottom of clouds on a stormy day we see that most of the sunlight doesn’t make it through the clouds because it has reflected off the tops of the clouds. read more