Life Cycle of a Star

Front

What is a star?

Back

A star is a massive, luminous sphere of plasma held together by gravity. The most well-known star in our solar system is the Sun.

Front

Which object in the solar system is a star?

Back

The Sun.

Front

What is the life cycle of a star?

Back

The life cycle of a star includes stages such as nebula, protostar, main sequence star, red giant or supergiant, and finally, either a supernova or a black hole.

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

Front

What do all stars start as?

Back

Nebula.

Front

What is a nebula?

Back

A nebula is a giant cloud of dust and gas in space, where stars are born.

Tags

NGSS.HS-ESS1-3

Front

What is a protostar?

Back

A protostar is the early stage of a star's formation, where the gas and dust begin to collapse under gravity.

Front

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

Back

When a star runs out of fuel, it undergoes changes that can lead to its death, resulting in a supernova or the formation of a black hole.

Tags

NGSS.HS-ESS1-1

Front

What is a supernova?

Back

A supernova is a powerful explosion that occurs at the end of a star's life cycle, often resulting in the star's outer layers being expelled into space.

Tags

NGSS.HS-ESS1-3

Front

What is a black hole?

Back

A black hole is a region in space where the gravitational pull is so strong that nothing, not even light, can escape from it.

Front

What characteristic of stars is MOST closely related to temperature?

Back

Color.