Discover The Incredible Layers of the Earth! 🌎
The Earth is composed of four main layers: the thin outer crust, the thick rocky mantle, the liquid outer core, and the solid inner core. These layers are defined by their chemical composition and physical properties, with temperature and pressure increasing dramatically toward the center, which is roughly 6,371 km deep.
This video provides a visual overview of the Earth's layers:
Crust: The outermost, solid layer, varying from 3–5 miles (5 km) thick under oceans to 44 miles (70 km) under continents.
Mantle: The largest layer (84% of Earth's volume), consisting of hot, solid-to-viscous rock that flows slowly. It is divided into the upper mantle and lower mantle.
Outer Core: A liquid layer composed of iron and nickel, responsible for generating the Earth's magnetic field. It is located around 1,800 miles below the surface.
Inner Core: The center of the planet, which is a solid sphere of iron and nickel due to immense pressure, reaching temperatures of 9,000 to 13,000°F.