mapping earth's interior

• Crust

  • The solid rock layer that makes up the outermost shell of the Earth
• crust is

  • 5-70 km Thick
• Mantle

  • The thickest of all layers
• Mantle

  • 2850 km Thick
  • The mantle lies below the crust
• Outer Core

  • The only liquid layer
• • Outer Core Still denser than the rocks of the mantle
  • 2200 km Thick
• Inner Core

  • 1270 km Thick
  • Densest Layer
• How scientist found/discover the layers of the Earth

  • Through the seismic waves