Earth from space

7, Kim and Vacca, History of Earth Timeline

  • 5 BYA Solar System Creation

    5 BYA  Solar System Creation
    Five billion years ago the solar system was a swirling mass of gas and dust and begins to form. The sun began to form a few million years later too. The sun was a energy source to all life that would happen.
  • 4.6 BYA Earth Formation

    4.6 BYA Earth Formation
    Earth grew larger as gravity pulled in more debris.
  • 4 BYA Volcanoes Brings Life

    4 BYA Volcanoes Brings Life
    The estimated age of Earth is about 700,000 times as long as the period of history recorded. Also, the oldest known rocks and crystals are 4 billion years old. Volcanoes erruptions formed gas making the atmosphere.
  • 4 BYA Organic Molecules

    4 BYA  Organic Molecules
    Organic molecules began to accumulate.
  • 3.5 BYA Fossil

    3.5 BYA Fossil
    Fossils of layered structures called stormatolites (made from lynbgya cells).
  • 3 BYA Plant Life

    3 BYA Plant Life
    Some forms of life had become photosynthetic. This shows that life could now live on the planet and was the beginning to bigger things.
  • 2.2 BYA Earth

    2.2 BYA Earth
    Earth probably appeared much as it is today.
  • 2 BYA Oxygen Neutralizes

    2 BYA Oxygen Neutralizes
    O2 levels reached today's levels.
  • 1.5 BYA Life Formed

    1.5 BYA Life Formed
    A type of small aerobic prokaryote was engulfed by and began to live. It reproduce inside of a larger anaerobic prokaryote.
  • 1 BYA Ozone Creation

    1 BYA Ozone Creation
    Ozone (O3) formed -protected organism from harmful Uv rays so they could exist on land
  • 1600's Redi's Experiment and The First Microscope

    1600's Redi's Experiment and The First Microscope
    Redi described and noticed the different development forms of flies.
    The first microscope in 1665 Roebert Hooke studied the nature with light micoscope.
  • 1700's Spallanzni's Experiment

    1700's Spallanzni's Experiment
    Spallanzani's bailed fresh clear broth left one open (cloudy) and one closed.
  • 1800's Pasteur's Experiment

    1800's Pasteur's Experiment
    Pasteurs curved the neck of the flask proving microorganism are in the air.
  • 1900's-Present Urey and Miller, Oparin's Hypothesis, Fox,Cech, and Marguis

    1900's-Present Urey and Miller, Oparin's Hypothesis, Fox,Cech, and Marguis
    Urey and Miller used Oparin's hypothesis to produce a variety of organic compound including amino acids.
    Oparin's hypothesis high tempertures make high tempertures making simple organic compounds
    Fox did research on the physical structures that may have given rise to the 1st cells.
    Cech discovered that types pf RNA is able to acrt as a chemical catalyst.
    Margulis discovered early prokaryotic cells might have developed a mutually beneficial relationship.
    Radiomaetric dating was developed in 1949
  • 1900's to Present. Radiometric dating

    1900's to Present. Radiometric dating
    Radiometric dating was developed in 1949 by J.R Arnold and W.F Libby. Radiometric dating tells you how old things are so it can help discover when things lived.