Big Bang Theory

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What is the Big Bang Theory?

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The Big Bang Theory is the prevailing scientific explanation for the origin of the universe, stating that it expanded from a hot, dense state.

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NGSS.HS-ESS1-2

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What does the Big Bang Theory suggest about the universe's expansion?

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The Big Bang Theory suggests that the universe has been expanding since its origin and continues to do so.

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NGSS.HS-ESS1-2

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What were the primary elements formed after the Big Bang?

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The primary elements formed after the Big Bang were hydrogen and helium.

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NGSS.HS-ESS1-2

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Is there a center of the universe according to the Big Bang Theory?

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No, there is no center of the universe; it is expanding uniformly in all directions.

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What is a common misconception about the Big Bang Theory?

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A common misconception is that the Big Bang Theory explains how life began on Earth.

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NGSS.HS-ESS1-2

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How is the Big Bang often described?

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The Big Bang is often described as an expansion rather than an explosion.

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What evidence supports the Big Bang Theory?

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Evidence supporting the Big Bang Theory includes the observation of the universe's expansion and cosmic microwave background radiation.

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What does the term 'cosmic microwave background radiation' refer to?

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Cosmic microwave background radiation is the afterglow of the Big Bang, filling the universe and providing evidence of its hot, dense origins.

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NGSS.HS-ESS1-2

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What is the significance of hydrogen and helium in the universe's formation?

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Hydrogen and helium are the first elements formed after the Big Bang and are the building blocks for stars and galaxies.

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NGSS.HS-ESS1-2

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What does it mean when we say the universe is 'still expanding'?

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It means that galaxies are moving away from each other, indicating that the universe continues to grow larger over time.

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