Table 9-3: Earth’s Internal Structure
RegionDepth Below Surface (km)Distance From Center (km)Average Density (kg/m3)
Crust (solid)0–5 (under oceans)
0–35 (under continents)
6343–63783500
Mantle (plastic, solid)from bottom of crust to 29003500–63433500–5500
Outer core (liquid)2900–51001300–350010,000–12,000
Inner core (solid)5100–64000–130013,000