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Thursday 5th May 2016
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Why do fingers go wrinkly in the bath?


bubblebath.jpgWhy do fingers go wrinkly in the bath?
Carol, Upper Norwood


** Definitive **
Name: James O'Brien
Qualification: Nothing I don't know about osmosis
Answer: The answer is……. OSMOSIS! The water passes through a semi-permeable membrane in the skin, meaning there is more fluid in your fingers. As the skin is connected to the tissue, the fingers wrinkle to create a greater surface area.