Explore the foundations of Earth science in this comprehensive geology lecture. Delve into key concepts including the geologic time scale, scientific inquiry methods, Earth's spheres, and their intersections. Examine Earth's early evolution, from the Big Bang to the Nebular Theory, and investigate the planet's internal structure. Learn about the rock cycle and the three main rock types. Gain insights into Earth's systems and processes, viewing our planet from both terrestrial and lunar perspectives. Discover how geology connects various scientific disciplines to explain Earth's origins and ongoing transformations.