The interior of the Earth can be divided into several layers based on composition, temperature, and behavior. Here are the primary layers of the Earth, starting from the surface and moving towards the center:

1. Crust:

- This is the outermost layer of the Earth, consisting of solid rock material

- Ranges in thickness from a few kilometers in ocean basins to over 80 kilometers in thickest continental regions

- Divided into oceanic crust (found under oceans) and continental crust (on the continents)

2. Mantle:

- Located beneath the crust and forms the majority of Earth's solid body

- Composed of semi-solid to solid rock (silicate materials)

- Divided into upper mantle (near the crust) and lower mantle

- Convection currents within the mantle cause tectonic plate movements

3. Outer Core:

- Beneath the mantle is a liquid layer called the outer core

- Composed primarily of iron and nickel metals

- Convection currents and the rotation of the Earth generate the Earth's magnetic field

4. Inner Core:

- Found at the center of the Earth and is the hottest part of the Earth

- Extremely high pressure and temperature lead to its solid state despite the high temperature (approximately 5,700 °C at the center)

- Also composed of iron and nickel, but denser than the outer core