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Question:

djk
djk
Student
High School - 9th Grade

How many layers are in the earth?

 

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Posted by djk on Tuesday May 12, 2009 at 3:05 PM and tagged with science, the earth.

Answers:


  1. marlon0607 Student
    High School - 11th Grade

    The earth has four layers: the crust, mantle, inner core, and outer core.

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    Posted by marlon0607 on Tuesday May 12, 2009 at 5:19 PM

  2. cburr
    cburr Teacher
    Middle School

    eNotes Editor

    Within the mantle, there are also different layers or sub-layers.

    The inner mantle (next to the outer core) is semi-rigid, and flows very slowly.

    The asthenosphere (lower) part of the upper mantle flows and is where magma comes from in a volcano.

    The top portion of the upper mantle (next to the crust) is rigid and rocky.

    This rocky top portion of the upper mantle is often grouped with the crust and called the lithosphere.

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    Posted by cburr on Tuesday May 12, 2009 at 7:56 PM