Earth time line

By Sierra Turner

  • how old earth is

    4.543 billion years

  • ice age

    Earth froze over twice in the time of 200 million years

  • first organism found

    the first organism found is 3,5 billion years old

  • plate tectonics

    earth is divided into a few dozen peices this proccess began 3 billion years ago

  • big organisms

    they go back 2.1 billion years they were colonies of bacteria

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