Big Bang Theory Review

Front

What is the Big Bang Theory?

Back

The Big Bang Theory is the prevailing model about the universe’s origin and is supported by observations of the universe’s expansion.

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NGSS.HS-ESS1-2

Front

What does the Cosmic Microwave Background (CMB) represent?

Back

The CMB is the remaining energy from the Big Bang.

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NGSS.HS-ESS1-2

Front

What does redshift indicate in astronomy?

Back

Redshift indicates that an object in space is moving away from the observer, suggesting the universe is expanding.

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NGSS.HS-ESS1-2

Front

What is a singularity in the context of the Big Bang?

Back

A singularity is a point where all of what would become the universe was concentrated before the Big Bang.

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NGSS.HS-ESS1-2

Front

What can we conclude from the observation that nearly all galaxies are moving away from us?

Back

The once-smaller universe is expanding in all directions.

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NGSS.HS-ESS1-2

Front

What is the significance of the abundance of elements in the universe?

Back

The abundance of elements supports the Big Bang Theory, indicating how elements formed shortly after the Big Bang.

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Front

What is the primary evidence for the Big Bang Theory?

Back

The primary evidence includes the observed expansion of the universe and the Cosmic Microwave Background radiation.

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Front

How does the Big Bang Theory explain the formation of galaxies?

Back

The Big Bang Theory explains that galaxies formed from the rapid expansion of matter and energy from a singularity.

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Front

What is the role of dark energy in the universe's expansion?

Back

Dark energy is thought to be responsible for the accelerated expansion of the universe.

Front

What is the difference between the Big Bang Theory and the Steady State Theory?

Back

The Big Bang Theory posits a beginning to the universe, while the Steady State Theory suggests the universe has always existed in a constant state.

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