• Question: What are moles?

    Asked by iluvdanny44 to Amy, Karen, Sarah, Will on 20 Jun 2012.
    • Photo: Karen Reed

      Karen Reed answered on 20 Jun 2012:


      Hiya – which sort are you thinking about – the animals that live under ground and leave heaps of soil around/

      Or what we have on our skin?

      I susspect its the skin ones you’re interested in – these are small groups of cells that grow and turn on the dark coloured protein in them. Most of the time they are completely harmless – they can be raised or flat, but usally have smooth edges. You can be born with them, but usually they develop – Being out in increases the number. But so to does hormans (like pregnancy and puberty) in some people.
      But you do need to check your moles and if they change colour – start bleeding, or become very irregular in shape without smooth edges it could mean they are changing into skin cancer and you need to get them checked out by the GP.
      Hope that helps

    • Photo: Will Reynolds

      Will Reynolds answered on 21 Jun 2012:


      Hey iluvdanny! There is actually another another kind of mole as well! In Chemistry moles are a unit of measurement for working out how many molecules of stuff you are using which is more acurate than just using weight. 1 mole is equal to 6.022 × 10^23 (602,200,000,000,000,000,000,000) molecules! For example one mole of water weighs 18 g. So in 18 ml of water there are ^ this many molecules!

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