Our Planet Earth
The only known planet with life in the universe
Crust
Thickness: 5-70 km
Main Elements: Oxygen, Silicon, Aluminum
Earth's thin outer shell where all life exists. Continental crust is thicker but less dense than oceanic crust.
Mantle
Thickness: 2,900 km
Main Elements: Silicate rocks rich in iron/magnesium
A slowly flowing solid that drives plate tectonics through convection currents.
Outer Core
Thickness: 2,200 km
Main Elements: Liquid iron/nickel
Creates Earth's magnetic field through its movement around the inner core.
Inner Core
Thickness: 1,220 km radius
Main Elements: Solid iron/nickel
Despite 5,400°C temperatures, immense pressure keeps it solid.
Earth's Layers Visualization
Did You Know?
Water World
If Earth's surface were perfectly smooth, water would cover it uniformly to a depth of 2.7 km.
Ancient Earth
Some zircon crystals from Australia are 4.4 billion years old - almost as old as Earth itself.
Dense Core
Earth's inner core is as hot as the Sun's surface but remains solid due to extreme pressure.
Magnetic Shield
Without our magnetic field, solar winds would strip away the atmosphere like what happened to Mars.