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A Timeline of the Early Building Blocks of Earth

A Timeline of the Early Building Blocks of Earth. 13.7 billion years ago The Big Bang Universe was probably smaller than an atom but had all the matter/energy necessary for building. Within the 1 st second Plasma Universe

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A Timeline of the Early Building Blocks of Earth

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  1. A Timeline of the Early Building Blocks of Earth

  2. 13.7 billion years ago The Big Bang Universe was probably smaller than an atom but had all the matter/energy necessary for building.

  3. Within the 1st second Plasma Universe Protons and electrons; four basic forms of energy; plasma mixture of energy and charged particles

  4. 380,000 years The First Atoms Universe cooled enough for protons and electrons to merge (electrically neutral); detected today in CBR (cosmic background radiation)

  5. The next almost 200 million years Clouds of Hydrogen and Helium Universe was lit only by the glow of huge amounts of energy pouring in to it

  6. 200 million years after The Big Bang The First Stars Clouds of H and He are fused through gravity when temps get extremely hot; energy now resists the force of gravity

  7. Galaxies Stars collect in to galaxies like our “Milky Way”, and then in to clusters but gravity is too weak to counteract the expanding Universe

  8. New Elements Millions of years after stars are created they run out of hydrogen and their centers collapse; helium atoms fuse to form new and more complex elements (up to iron that has 26 protons)

  9. About a billion years after the Big Bang Supernova The collapse of large stars have temps so hot that the more complex elements of chemistry are created, necessary for Earth

  10. The Next Step… All of the complex elements floating in the Universe through the birth and death of stars gradually combine to create planets

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