Our Expanding Universe

Front

What element is produced in stars that is essential for life on Earth?

Back

Gold

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

Front

What does the distribution of elements in the universe refer to?

Back

The distribution of each element in the universe.

Tags

NGSS.HS-ESS1-3

Front

What are the three pieces of evidence supporting the current theory of the universe?

Back

Redshift, Cosmic Microwave Background (CMB), and formation of elements.

Tags

NGSS.HS-ESS1-2

Front

What does it mean if a galaxy is redshifted?

Back

It is moving away from us.

Tags

NGSS.HS-ESS1-2

Front

What is the current temperature of the universe?

Back

About 2.7 Kelvin.

Front

What is redshift and why is it important in astronomy?

Back

Redshift is the phenomenon where light from an object is shifted to longer wavelengths, indicating that the object is moving away from the observer. It is important for understanding the expansion of the universe.

Tags

NGSS.HS-ESS1-2

Front

What is the Cosmic Microwave Background (CMB)?

Back

The CMB is the afterglow radiation from the Big Bang, providing evidence for the early state of the universe.

Tags

NGSS.HS-ESS1-2

Front

How do elements form in the universe?

Back

Elements form through nuclear fusion in stars and during supernova explosions.

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

Front

What is the significance of the Big Bang theory?

Back

The Big Bang theory explains the origin of the universe and its expansion from a singular point.

Tags

NGSS.HS-ESS1-2

Front

What role do supernovae play in the universe?

Back

Supernovae distribute heavy elements into space, contributing to the formation of new stars and planets.

Tags

NGSS.HS-ESS1-3