Earth's density profile

Earth's density increases from the surface to its core. The crust is relatively thin and composed of lighter rocks, making it less dense. Beneath that is the mantle, where rocks become richer in heavier elements, increasing density. At Earth's center lies the core, composed mostly of iron and nickel, making it the densest part. Overall, Earth’s density is about 5.5 grams per cubic centimeter, reflecting the transition from lighter surface materials to dense metals at the core. This layered structure influences Earth's gravity and magnetic field.