Gap Fill - Earth's Core - Level 6


  • Choose the correct word from the drop-down menus below.
  • Click the button at the bottom to check your answers.
  • Press the "refresh" button on your browser to play again.
  • After this paragraph, go to Paragraph 2.

   calculations      crust      data      deep      geology      geophysicist      layer      scorching      solid      surface   

Paragraph 1

Little is known about the of the very centre of Earth. It was believed our planet had just one core – a hot mass of molten rock and gas surrounded by a , rock mantle. The mantle is a ring between the earth's and core. The core is found 2,900 kilometres below Earth's . It has a radius of around 3,485 kilometres. Scientists from the University of Chicago have discovered that there may be a second core below our feet. Research has led Dr Sunyoung Park to believe there is another core. She analyzed from a 560-km-deep earthquake. Her showed the possibility of a second core, consisting of a of fluid rock, at the bottom of the mantle.

Now go to   Paragraph 2.

Back to the earth's core lesson.

Share this lesson

More Free Sites by Sean Banville

Online Activities