Big Bang Theory

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What is the Big Bang Theory?

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The Big Bang Theory is the scientific explanation for the origin of the universe, stating that it expanded from a singular point and is still expanding today.

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NGSS.HS-ESS1-2

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What does CMBR stand for?

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CMBR stands for Cosmic Microwave Background Radiation, which is the leftover heat from the Big Bang.

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NGSS.HS-ESS1-2

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What is a spectrum in astronomy?

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A spectrum is a band of colors produced when light emitted from a star or galaxy is separated.

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NGSS.HS-ESS1-2

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What were the original two elements in the universe?

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The original two elements in the universe were Hydrogen and Helium.

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How old do scientists estimate the universe to be?

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Scientists estimate the universe to be approximately 13.8 billion years old.

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NGSS.HS-ESS1-2

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What is redshift?

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Redshift is the phenomenon where light from distant galaxies is shifted towards the red end of the spectrum, indicating that they are moving away from us.

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NGSS.HS-ESS1-2

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What is the significance of the Big Bang Theory?

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The Big Bang Theory provides a comprehensive explanation for the origin and evolution of the universe, including the formation of galaxies and cosmic structures.

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NGSS.HS-ESS1-2

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What evidence supports the Big Bang Theory?

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Evidence supporting the Big Bang Theory includes the observed redshift of galaxies, the abundance of light elements, and the Cosmic Microwave Background Radiation.

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NGSS.HS-ESS1-2

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What is the role of dark matter in the universe?

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Dark matter is a form of matter that does not emit light or energy, and it is believed to make up about 27% of the universe, influencing its structure and expansion.

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What is the difference between a galaxy and a star?

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A galaxy is a massive system of stars, gas, dust, and dark matter bound together by gravity, while a star is a luminous celestial body made of plasma that generates energy through nuclear fusion.