Earth's Layers

Mantle

• The mantle is a thicker layer than the crust.
• Convection currents occur in the mantle, which drives the movement of tectonic plates.

Core

• Divided into the outer and inner core.
• Outer core:
  • Liquid.
  • Composed of iron and nickel.
• Inner core:
  • Solid and extremely hot (up to $5,700$ degrees Celsius).
  • Contributes to the Earth's magnetic field due to intense heat and pressure.

Importance

• Understanding these layers is crucial for understanding:
  • Earthquakes
  • Volcanic activity
  • Plate tectonics
• Interactions between these layers shape our planet.