Condensation - GCSE Chemistry Definition

Condensation is the process where a gas changes into a liquid. This usually happens when the gas is cooled down. For example, when water vapour in the air cools down, it turns into tiny droplets of liquid water, like the ones you see on the outside of a cold drink on a warm day.

In the water cycle, condensation forms clouds when water vapour in the air cools and turns back into liquid water. This process is important because it helps bring rain and replenishes water on Earth. Understanding condensation is a key part of learning about changes of state and the water cycle in your GCSE Chemistry course.