Earth’s Internal Structure: Crust, Mantle, Outer Core, and Inner Core #1908629 (License: Personal Use)

This educational illustration depicts Earth’s internal structure, with the thin outer crust (brown), thick silicate mantle (yellow), liquid iron-nickel outer core (orange), and solid inner core (red). Each layer is labeled with blue lines for clarity, and the surface shows continents and oceans to provide geographic context. The diagram emphasizes compositional and physical differences critical to understanding geophysics and plate tectonics.

Used in science education websites, geology textbooks, and K-12 STEM resources to explain planetary structure; matches user intent for learning or teaching Earth’s composition and internal dynamics.