USGS CMG InfoBank: The three layers of the Earth's interior

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Comment: 07:22 - 07:46 (00:24)
Source: Annenberg/CPB Resources - Earth Revealed - 3. Earth's Interior
Keywords: geophysicist, crust, mantle, core

Our transcription: Based on seismological research, geophysicists have deduced that the Earth's interior is divided into three layers:
the crust, a thin skin at the surface;
the mantle, a thick shell of rock beneath the crust, which extends down to...
the core, a central sphere roughly half the diameter of the planet.

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