Clouds are not a single state of matter, but rather a mixture of liquid water droplets and ice crystals suspended in air. This is why we sometimes see fluffy white clouds and other times dark storm clouds.

Here's a breakdown:

* Liquid water droplets: These are the main component of clouds in warmer temperatures.

* Ice crystals: These form in colder temperatures and are responsible for the formation of cirrus clouds, which are high in the atmosphere.

So, while we might think of clouds as "water vapor," they are actually a combination of both liquid and solid states of water.