HR Diagram and Stars REVIEW

Front

What is a large grouping of stars in space called?

Back

Galaxy

Front

What happens to a star when it uses up its hydrogen supply?

Back

It expands and cools, becoming a red giant.

Tags

NGSS.HS-ESS1-1

Front

What two words could describe a star that is bright and cool?

Back

Bright, Cool

Front

What will our Sun become after it turns into a red giant and sheds off its planetary nebula?

Back

White dwarf.

Front

What two words could describe a star that is bright and hot?

Back

Bright, Hot

Front

What is the main sequence phase of a star?

Back

The phase where a star fuses hydrogen into helium in its core.

Tags

NGSS.HS-ESS1-1

Front

What is the significance of the Hertzsprung-Russell diagram?

Back

It classifies stars based on their luminosity, color, temperature, and evolutionary stage.

Front

What type of star is the Sun classified as?

Back

A medium-sized main sequence star.

Front

What is a planetary nebula?

Back

A shell of gas ejected from a red giant star at the end of its life.

Tags

NGSS.HS-ESS1-3

Front

What is the final stage of a massive star's life cycle?

Back

It can become a neutron star or a black hole, depending on its mass.