How Do ‘Clouds’ Form and Why Are They Different Shapes?

Clouds are like invisible jello made from tiny water droplets that float high up in the sky.

When warm air goes up into the sky, it carries with it water vapor, which is like invisible steam. As this warm air rises higher, it gets colder. When the air cools down enough, the water vapor turns into tiny water droplets or even ice crystals, just like how water in a glass can turn to ice when you put it in the freezer.

These tiny droplets and crystals are so small they stay floating in the sky instead of falling back down. That’s why we see clouds!

Clouds come in many shapes because of how high up they are and what kind of weather is happening around them.

• Cotton candy-like clouds (called cumulus) happen when warm air rises quickly, making big fluffy bunches.
• Long, wavy lines (called stratus) form when the sky is cool and steady, like a gentle breeze pushing the droplets into flat layers.
• Feathery, wispy clouds (called cirrus) are made of ice crystals high up in the cold sky, giving them a light, fluffy look.

So just like how different kinds of jello can be squishy or wiggly, clouds have different shapes depending on where they’re made and what's happening around them!