Earth’s Internal Structure Diagram - Crust, Mantle, Outer & Inner Core #67919 (License: Personal Use)

This diagram illustrates the concentric structure of Earth, starting from the thin outer crust (blue/green surface layer), followed by the thick silicate mantle (red), the liquid iron-nickel outer core (light brown), and the solid iron-nickel inner core (dark red center). Each layer is labeled clearly to support learning in earth sciences, planetary physics, and introductory geology.

Used in educational websites, textbooks, and science outreach materials to explain planetary composition; matches user intent for visual learning about Earth’s geophysical structure.