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Earth's Interior loading

Scientists learn about Earth's interior using seismic waves, meteorites, density and the magnetic field.

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Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.
  • Read
    Earth's Interior

    Earth's Interior

    by CK-12 //basic
    How scientists use seismic waves to learn about the Earth's interior.
    MEMORY METER
    This indicates how strong in your memory this concept is
  • Video
    Seismic Waves

    Seismic Waves

    by CK-12 //basic
    Explains how the various types of earthquake waves interact with the Earth and its core.
    MEMORY METER
    This indicates how strong in your memory this concept is
  • Real World Application
    Discovering the Core

    Discovering the Core

    by CK-12 //basic
    Early seismolgists studying the travel times of seismic waves discovered that Earth has an inner and an outer core.
    MEMORY METER
    This indicates how strong in your memory this concept is
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