The Big Bang Theory

Front

What is the Big Bang Theory?

Back

The Big Bang Theory is the leading explanation for the origin of the universe, stating that it began as a singularity approximately 13.8 billion years ago and has been expanding ever since.

Tags

NGSS.HS-ESS1-2

Front

What happens to a star when it runs out of fuel?

Back

When a star runs out of fuel, the inward force of gravity exceeds the outward force from nuclear fusion, leading to its collapse and eventual death.

Tags

NGSS.HS-ESS1-1

Front

What evidence supports the claim that all hydrogen in the universe was created during the Big Bang?

Back

The abundance of elements in the universe, particularly the ratio of hydrogen to helium, supports this claim.

Tags

NGSS.HS-ESS1-2

Front

What does the Hubble Deep Field image tell us about distant galaxies?

Back

The Hubble Deep Field image allows us to see what distant galaxies looked like billions of years ago, providing insight into the early universe.

Tags

NGSS.HS-ESS1-2

Front

How do we know the universe is expanding?

Back

The red-shift observed in light from distant galaxies indicates that they are moving away from us, suggesting that the universe is expanding.

Tags

NGSS.HS-ESS1-2

Front

What is cosmic microwave background radiation?

Back

Cosmic microwave background radiation is the afterglow of the Big Bang, filling the universe and providing evidence for the Big Bang Theory.

Tags

NGSS.HS-ESS1-2

Front

What is the order of celestial bodies from smallest to largest?

Back

Earth, Solar System, Galaxy, Universe.

Tags

NGSS.MS-ESS1-3

Front

What is a galaxy?

Back

A galaxy is a massive system of stars, stellar remnants, interstellar gas, dust, and dark matter, bound together by gravity.

Tags

NGSS.MS-ESS1-2

Front

What is a solar system?

Back

A solar system consists of a star and all the celestial bodies that are bound to it by gravity, including planets, moons, asteroids, and comets.

Tags

NGSS.HS-ESS1-4

Front

What is the significance of red-shift in astronomy?

Back

Red-shift is significant because it provides evidence for the expansion of the universe and helps astronomers determine the distance and speed of galaxies.

Tags

NGSS.HS-ESS1-2

NGSS.HS-PS4-3