| || ||When a liquid evaporates, it cools down. |
This can be useful. For example sweating helps your body stay cool when you run around. Your skin produces sweat, which then evaporates off the surface, making it cooler.
However, you wouldn't want a body spray to feel cold on your skin. We can stop it feeling cold by making sure it breaks up into small particles when it leaves the can. Let's see why small particles stop a spray feeling cold.