skip to content skip to search skip to navigation Listen Live skip to logon
Friday 9th October 2015
Max 17°C | Min 11°C

Why does soap stop a mirror steaming up?


If I have a shower, the mirror steams up. But if I put a coating of soap on the mirror, it doesn’t steam up. Why?
Michael, Guildford


We didn't manage to get an answer for this question. If you know, send us your answer in the box below…