Mystery #1Tier 1-2gases / smell
How does the smell of dinner reach your nose two rooms away?
Someone is cooking dinner in the kitchen and you are upstairs behind a shut door. A few minutes later your nose picks it up: bacon, or garlic, or warm toast. Nobody wafted it towards you, and the air in between looks perfectly still. So how did the smell travel all that way to find your nose?
Your guess
What's your hunch about how the smell of the food gets all the way to your nose?
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.