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Published byRachel Richards Modified over 10 years ago
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The Big Bang Theory
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Before the Big Bang There was nothing: space, time, matter, & energy didnt exist
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Then everything changed, and we dont really know why.
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It is the expansion of a singularity that formed the universe. It created everything: Time, Space, and the Matter (atoms) that make up everything The Big Bang is the birth of the universe 13.7 billion years ago.
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So what happened?
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Everything was compressed into a tiny spec. It suddenly expanded very rapidly and was very hot.
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As it expanded it cooled and matter began to form by sticking together.
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Eventually the matter clumped together into nebula clouds
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Then gravity helped pull the matter in to make stars and galaxies.
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Some of these stars died out & blew up. From the debris new stars and planets formed like our solar system.
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The universe continues to expand, stretching space and time b/t the galaxies.
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A brief writing break to watch this video review Expansion of the Universe film http://www.youtube.com/watch?v=th_9ZR2I0_w
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Edwin Hubble used a very powerful telescope to see: 1.The Milky Way is NOT the only galaxy 2.Galaxies are moving away from each other (if they are moving away now then at some point they must have been closer-George Lemaitre) What proof do we have for the Big Bang?
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Edwin Hubble's Telescope http://hubblesite.org/gallery/
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http://www.youtube.com/watch?v=kV33t8U6w28 Video-What is the Universe expanding into?
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3. Leftover radiation fills all of space (space is now cold, 3K) 4. The amount of Hydrogen & Helium found in the universe matches predictions.
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The Universe is like Raisin Bread Interview with Noble prize winner Dr. Adam Reiss http://www.telegraph.co.uk/science/ 8807068/Universe-like-raisin- bread-says-Nobel-prize- winner.html Video of rising raisin bread http://www.youtube.com/ watch?v=0z8hrRXQuHY http://www.youtube.com/ watch?v=L8DgU07fjYk
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