In the radiative zone, energy is transported through the process of radiation. Photons, the particles that make up light, are emitted and absorbed by ions and electrons in the plasma. These photons travel in a random walk, bouncing from one particle to another until they reach the outer edge of the radiative zone.
Develop and use models of Earth’s interior composition to illustrate the resulting magnetic field (e.g., magnetic poles) and to explain its measureable effects (e.g., protection from cosmic radiation).