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Structure of Earth

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  • What is the 3rd layer of Earth (from the inside? called?
    mantle
  • True or False, the Earth will look the same in 250 million years.
    False
  • What material is the mantle made from?
    Metals
  • What is the 2nd inner layer of Earth called?
    Outer core
  • How many major tectonic plates are there?
    7
  • True or False, the Earth looked the same 250 million years ago.
    False
  • What is the inner most layer of Earth called?
    The inner core
  • How far do tectonic plates move each year?
    The length of your fingernail (1 1/2 centimeters)
  • What are the name of the plates covering the Earth's surface?
    Tectonic Plates
  • Why do tectonic plates move?
    Because the magma they rest on is semi solid (sometimes liquid)
  • What was Earth called when it was all one country?
    Pangea
  • What is the outer layer of the Earth called?
    Crust
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