Earth's layers

Earth's layers consist of the crust, mantle, outer core, and inner core. The crust is the thin, solid outer shell where we live, similar to a skin. Beneath it lies the mantle, a hot, semi-solid layer of rock that slowly flows, allowing tectonic plates to move. Below the mantle is the outer core, a liquid layer made mostly of iron and nickel, which generates Earth's magnetic field. At the center is the inner core, a solid sphere of iron and nickel extremely hot but compressed. These layers work together to shape our planet's geology and magnetic environment.