The Moon

• How was the Moon formed?

  Giant Impact Theory
• How many Moons can fit inside the Earth?

  Four
• What is synchronous rotation?

  Moon rotating at the same rate that it revolves around Earth
• How long does it take the Moon to complete one orbit around the Earth?

  27 Days
• What is the temperature of the Moon's surface facing the Sun?

  127 Degrees Celsius
• What is the temperature of the Moon's surface away from the Sun?


  -173 Degrees Celsius
• What do you call the charcoal-gray, powdery dust, and rocky debris on the Moon's surface?

  Lunar Regolith
• What are the light parts of the Moon called?

  Highlands
• What are the dark parts of the Moon called?

  Maria
• What is the outermost layer of the Moon?

  Crust
• What is the layer of the Moon that is divided into two parts?

  Mantle
• What do you call the upper Mantle?

  The rigid lithosphere
• What do you call the lower Mantle?

  Athenosphere
• What do you call the innermost layer of the Moon?

  Core
• The inner core is a solid, iron-rich part (240 km thick) surrounded by a liquid iron core (90 km thick).