21 November 2014 Last updated at 15:20
  • Newsround logoWatch Newsround

    Watch the latest update from Newsround, CBBC's news programme for children.

  • cow patQuiz: Poo

    Try our poo quiz with fun questions and answers for kids. It's free!

  • A volcano erupting in EcuadorQuiz: Volcanoes

    Try our volcanoes quiz with fun questions and answers for kids. It's free!

BBC © 2014 The BBC is not responsible for the content of external sites. Read more.

This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.