8.9 A Check #1

Front

What is the first stage in the life cycle of a star?

Back

Nebula

Front

What does the Hertzsprung-Russell diagram represent?

Back

A graph that plots stars based on their brightness and temperature.

Front

What primary factor determines the life cycle path of a star?

Back

Its initial mass.

Front

How is the color of a star related to its temperature?

Back

Cooler stars are red, and hotter stars are blue.

Front

Which type of star is likely to be the brightest on the Hertzsprung-Russell diagram?

Back

A blue supergiant.

Front

What is a nebula?

Back

A large cloud of gas and dust in space, often the birthplace of stars.

Front

What is a red giant?

Back

A late stage in the life cycle of a star where it expands and cools after exhausting its hydrogen fuel.

Front

What is a white dwarf?

Back

A small, dense star that is the remnant of a low to medium mass star after it has shed its outer layers.

Front

What is a blue supergiant?

Back

A very large and bright star that is hotter than the sun and has a short life span.

Front

What is the significance of a star's initial mass?

Back

It determines the star's life cycle, including its lifespan and the type of supernova it may produce.