Formation of Earth

By Georgia (Zhao YuChen)
  • Period: 4600 BCE to 4600 BCE

    Planetary Accretion  

    The star's expoison cause the could to collapse, the energy gathered together by the gravity, perduced an massive object, like an dust cloud.
  • Period: 4500 BCE to 4500 BCE

    Planetary Cooling  

    A star nearby the earth expolde, it made the dust cloud speed up spining and produced sun, earth and whole Galactic System. As the time goes, the body of the planet cools off. This usallly is a long process.
  • Period: 4000 BCE to 4000 BCE

    Formation of the Moon 

    A gaint asteroid hits the earth and produced many debris, those debris from earth reformed into a new planet named moon
  • Period: 4000 BCE to 3800 BCE

    End of Heavy Bombardment  

    The asteroids stop showering earth about 4.1 to 3.8 billion years ago.
  • Period: 1500 BCE to 1000 BCE

    Core Formation  

    The Earth's core formed during this peroid, the inner core is made of solid, the outer core is made of liquid.