ESS_Big Bang and Stars

Approximately how long ago did the Big Bang occur?

• 13.8 million years ago

• 138 billion years ago

• 13.8 billion years ago

• 1.38 billion years ago

Tags

NGSS.HS-ESS1-2

What does the cosmic microwave background radiation (CMBR) represent?

• The light emitted by the first stars in the universe

• Radiation from black holes

• The cooled remnants of radiation from the early universe

• Microwaves from active galaxies

Tags

NGSS.HS-ESS1-2

What does redshift indicate about a galaxy’s motion?

• The galaxy is moving toward Earth

• The galaxy is moving away from Earth

• The galaxy has stopped moving

• The galaxy is rotating faster

Tags

NGSS.HS-ESS1-2

What does blueshift indicate about a galaxy’s motion?

• It is cooling down

• It is moving away from Earth

• It is expanding rapidly

• It is moving closer to Earth

Tags

NGSS.HS-ESS1-2

How does the redshifting of galaxies provide evidence for the Big Bang?

• It shows galaxies are orbiting one another

• It indicates galaxies are stationary

• It supports the idea that the universe is expanding

• It proves that galaxies are collapsing inward

Tags

NGSS.HS-ESS1-2

Why do nearby stars and galaxies have different compositions from very distant ones?

• Distant galaxies formed after heavier elements were created through fusion.

• Nearby galaxies have always been more massive, allowing them to hold more elements.

• Stars and galaxies closer to us have undergone more stellar generations, enriching them with heavier elements.

• Distant galaxies are too cold to create new elements.

Tags

NGSS.HS-ESS1-3

How does the composition of nearby and distant galaxies provide evidence for the Big Bang?

• It proves that the universe is not expanding.

• It shows that nearby galaxies are younger than distant ones.

• It reveals that early galaxies contained mostly hydrogen and helium, matching Big Bang predictions.

• It confirms that black holes were common shortly after the Big Bang.

Tags

NGSS.HS-ESS1-2

What are the two main elements found in nebulae, stars, and galaxies?

• Oxygen and carbon

• Hydrogen and helium

• Helium and nitrogen

• Silicon and iron

Tags

NGSS.HS-ESS1-3

How did the discovery of the cosmic microwave background radiation support the Big Bang theory?

• It matched predictions of leftover thermal radiation from the early universe.

• It showed that galaxies are rotating around a central point.

• It disproved the redshift of galaxies.

Tags

NGSS.HS-ESS1-2

Which three pieces of evidence best support the Big Bang theory?

• Redshift, cosmic microwave background radiation, and abundance of heavy elements

• Redshift, cosmic microwave background radiation, and hydrogen-helium ratios

• Planetary orbits, moon phases, and sunspot cycles

• Quasars, asteroid impacts, and black holes

Tags

NGSS.HS-ESS1-2