Study

Earth's Layers

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  • This layer of Earth is divided into tectonic plates.
    the lithosphere
  • Name each major layer of Earth from the surface to the last layer.
    crust, mantle, outer core, inner core
  • This layer of Earth is solid, rigid, and rocky.
    the crust
  • This layer of Earth makes up most of its mass.
    the mantle
  • This is the thickest layer of Earth.
    the mantle
  • This layer of Earth is composed of flowing rock.
    the mantle
  • What are the 2 types of crust?
    continental and oceanic
  • True or False: Temperatures decrease from the crust to the inner core.
    False
  • This layer of Earth contains living organisms.
    the crust
  • This is the thinnest layer of Earth.
    the crust
  • Tectonic plates float on this layer of Earth.
    the asthenosphere
  • This is the hottest layer of Earth.
    inner core
  • This layer of Earth is part of the upper mantle.
    the asthenosphere
  • This is the most dense layer of Earth.
    inner core
  • This layer of Earth is made of solid iron and nickel.
    inner core
  • This layer of Earth is composed of liquid iron and nickel.
    the outer core
  • True or False: Pressure increases from Earth's crust to its inner core.
    True
  • This is the coolest layer of Earth.
    the crust
  • This layer of Earth floats on top of the asthenosphere.
    the lithosphere
  • Why is Earth's inner core solid?
    extreme pressure
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