This document provides an outline on the origin and evolution of the Earth. It discusses the Earth's place in the solar system and how the Earth formed from a rotating cloud of dust after the formation of the solar system. It describes how the Earth grew and differentiated over time through bombardment, insulation, gravitational compression, and radioactive decay. The document outlines the current structure of the Earth, describing its chemical and mechanical layering into a crust, mantle, and core. It introduces the concept of plate tectonics, how the lithosphere is broken into plates that move at divergent, convergent, and transform plate boundaries.