The Earth

• How old is the Earth?

  4.54 Billion Years Old
• What is the Earth's distance from the Sun?


  150 million km
• What layer of the Earth is a solid, hot, dense ball of (mostly) iron?

  Inner Core
• What is the radius of the Earth's Inner Core?


  1220km
• What is the temperature at the Earth's Inner Core?

  5200 Degrees Celsius
• What is the pressure at the Earth's Inner Core?

  3.6 Million Atmosphere (Atm)
• What is the Earth's Outer Core composed of?

  Liquid Iron and Nickel
• What is the thickness of the Earth's Outer Core?

  2200km to 2250km
• What is the temperature at the Earth's Inner Core?

  4500 Degrees Celsius to 5500 Degrees Celsius
• What is the layer of molten rock between the solid crust and the hot, dense core?


  Mantle
• What is the thickness of the Earth's Mantle?

  2900km
• The Mantle makes up most of the Earth's interior
• What is the temperature of the Mantle?

  1000 Degrees Celsius to 3700 Degrees Celsius
• What is the outermost layer of the Earth?

  Crust
• It makes up 1% of the Earth's mass
• What is the Earth's Crust made up of?

  Solid Rocks and Minerals
• What are the two types of Crust that it has?

  Continental and Oceanic Crust
• Which Crust is older and thicker?

  Continental
• Which Crust is younger and denser?

  Oceanic