• Question: Why don't the oceans freeze? What causes lightning?

    Asked by nicolelovesed to Angela, Gopal, Hannah, Becky, Vince on 25 Jun 2013.
    • Photo: Rebecca Cook

      Rebecca Cook answered on 25 Jun 2013:


      Oceans don’f freeze because they are constantly moving but also the salt content of sea water lowers the freezing temperature.

      Lightning is electrical discharge that hits the earth, a bit like a giant static shock.

    • Photo: Hannah Little

      Hannah Little answered on 26 Jun 2013:


      Oceans do freeze sometimes though, at the North and South poles there is miles and miles of frozen ocean!

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