Big Bang Theory
Presentation
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Science
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8th - 9th Grade
•
Hard
Joseph Anderson
FREE Resource
7 Slides • 3 Questions
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Big Bang theory
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Open Ended
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The origins of the universe
This theory suggests that the universe as we know it started with a small singularity, then inflated over the next 13.8 billion years to the cosmos that we know today
Scientists believe that the solar system formed about 4,500 million years ago in a huge cloud of gas and dust called a nebula.
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Evidence
- Mathematical formulas and models has formed much of our understanding of the Big Bang Theory so far. However evidence exists to support this theory.
- One form of evidence is that Scientists believe we can see the "echo" of the expansion through a phenomenon known as the cosmic microwave background.
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Evidence 1 - COSMIC MICROWAVE BACKGROUND
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Poll
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If you were to point a satellite dish into empty space you would get static
The universe has an underlying static - Cosmic microwave background
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Cosmic Microwave Background
Big Bang Theory suggests that the universe was a very hot place and that as it expands, the gas within it cools
As the universe began to cool, radiation began to fill the universe as a remnant of the heat left over - this is called 'Cosmic Microwave Background'
The cosmic microwave radiation is like an 'afterglow' of radiation
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Big Bang theory
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