The Earth's core

6 Minute English

语言学习

2015-09-24

6 分钟
PDF

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  • This is a download from BBC Learning English.

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  • 6M English from bbclearningenglish.com Hello and welcome to 6 Minute English.

  • I'm Rob.

  • And I'm Alice.

  • Hello.

  • Hi there Alice.

  • Now, have you read any books by Jules Verne?

  • Yes I have.

  • Journey to the centre of the earth was my favourite book as a child.

  • A German professor and his two companions climbed down a volcano in search of the Earth's centre or core.

  • They visit strange lands inhabited by dinosaurs and giant prehistoric humans and sail across an underground ocean.

  • Very exciting, but it doesn't sound very realistic.

  • How do they get out again?

  • Well, they shoot to the surface from the mouth of Mount Etmer during a volcanic eruption.

  • Wow, well that sounds very uncomfortable.

  • Well on today's show, we're going to discuss what scientists really know about the Earth's core.

  • Yes, the Earth has a dense inner core surrounded by a fluid outer core.

  • Dense, by the way, means heavy in relation to its size.

  • But, Rob, I've got a question for you as usual.