Cambios de estado – ¿Sabías que?

Steam is an invisible gas, and water vapor becomes visible when it cools and condenses into droplets, forming a white mist. The air always contains some water vapor, and clouds form when large amounts of this vapor condense into visible water droplets.

What is steam made of?

What happens to water vapor when it cools?

How do droplets of liquid water become visible?

What does the air always contain?

What forms clouds in the atmosphere?