Core:
The Earth’s core is the innermost layer, divided into a liquid outer core and a solid inner core. Temperatures in the core range from approximately 4,400°C to 6,100°C.
Mantle:
The mantle is the thickest layer, located between the crust and the core. It’s mostly solid, but some parts exhibit plasticity, allowing for slow convection currents due to temperature differences. Temperatures in the mantle range from about 500°C to 900°C at the top and can reach over 3,700°C at the core-mantle boundary.
Crust:
The Earth’s crust is the outermost solid layer, composed of the lithosphere. The temperature varies across the crust, influenced by factors like geothermal gradient and surface conditions, but it’s generally the coolest layer.