• Question: Why scientifically does being wet out of water cool you down?

    Asked by 962curm44 to Daniel, Fiona, Hazel, Jacque, Kezia, Matthew on 13 Mar 2018.
    • Photo: Fiona Macfarlane

      Fiona Macfarlane answered on 13 Mar 2018:

      When your skin is wet it starts to evaporate, this process needs energy so it takes in heat from your body to do this. So you feel cold

    • Photo: Kezia Sasitharan

      Kezia Sasitharan answered on 14 Mar 2018:

      When you get out of water, there are still water molecules in the liquid state on your skin. Some of those water molecules have enough energy to actually break out of the liquid phase and become gas (vapours). This is what happens during evaporation. Once the molecules become vapours, they are removed and thus the average energy of the remaining molecules decreases. This kinetic energy is directly proportional to the temperature of the liquid, and this leads to the cooling effect that you feel.