Evidence for Big Bang Theory

Front

What is Universal Expansion?

Back

Universal Expansion refers to the observation that galaxies are moving away from each other, indicating that the universe is expanding over time.

Tags

NGSS.HS-ESS1-2

Front

What happens to light waves from galaxies moving away from us?

Back

The light waves are stretched out, a phenomenon known as redshift.

Tags

NGSS.HS-ESS1-2

Front

What is the Big Bang Theory?

Back

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

Tags

NGSS.HS-ESS1-2

Front

Which statement is NOT true about the Big Bang Theory?

Back

It is the scientific explanation of how life began on Earth and evolved over time.

Tags

NGSS.HS-ESS1-2

Front

What is NOT evidence of the Big Bang Theory?

Back

Stars that are blue shifted.

Tags

NGSS.HS-ESS1-2

Front

Why are hydrogen and helium the most common elements in the universe?

Back

They are the simplest elements, formed shortly after the Big Bang.

Tags

NGSS.HS-ESS1-2

Front

What is redshift?

Back

Redshift is the phenomenon where light from an object moving away from an observer is stretched to longer wavelengths, making it appear redder.

Tags

NGSS.HS-ESS1-2

NGSS.HS-PS4-3

Front

What does the abundance of hydrogen and helium in the universe suggest?

Back

It suggests that these elements were formed in large quantities during the early moments of the universe.

Tags

NGSS.HS-ESS1-2

Front

What is cosmic microwave background radiation?

Back

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

Tags

NGSS.HS-ESS1-2

Front

What does the term 'singularity' refer to in the context of the Big Bang?

Back

Singularity refers to the initial state of the universe at the moment of the Big Bang, where density and temperature were infinitely high.

Tags

NGSS.HS-ESS1-2