Mystery #2Tier 2water / states
Why can you see your breath on a cold day?
On a cold morning you breathe out and a little cloud appears, but indoors, or in summer, your breath is invisible. You're breathing the same way every time. So why does the cloud only show up in the cold?
Your guess
What's your hunch about what makes your breath show up as a cloud only when it's cold?
There's no single magic word to type, have a go in your own words, then reveal the answer to see how close you got.
Make a guess to unlock the hints and the answer.