Life Cycle of a Star

Front

What is a Protostar?

Back

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

Front

What is a White Dwarf?

Back

A White Dwarf is a small, dense star that has exhausted its nuclear fuel and has collapsed, typically the final stage of a star like our Sun.

Front

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

Back

The first stage in the life cycle of a star is the Protostar stage.

Front

What is the Main Sequence stage of a star?

Back

The Main Sequence stage is when a star is in a stable phase, fusing hydrogen into helium in its core, and it is the longest stage in a star's life.

Tags

NGSS.HS-ESS1-1

NGSS.HS-PS1-8

Front

What characterizes the Main Sequence stage of a star?

Back

The Main Sequence stage is characterized by stable nuclear fusion of hydrogen into helium.

Tags

NGSS.HS-ESS1-1

Front

What happens during the Red Giant phase?

Back

During the Red Giant phase, a star expands and cools after exhausting hydrogen in its core, leading to the fusion of heavier elements.

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

Front

What is a Supernova?

Back

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

Tags

NGSS.HS-ESS1-3

Front

What is a Neutron Star?

Back

A Neutron Star is the remnant core left after a supernova explosion, composed almost entirely of neutrons and incredibly dense.

Tags

NGSS.HS-ESS1-3

Front

What is the life cycle of a star?

Back

The life cycle of a star includes stages: Protostar, Main Sequence, Red Giant, Supernova, and then either a Neutron Star or Black Hole.

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

Front

What is a Red Dwarf?

Back

A Red Dwarf is a small and cool star on the Main Sequence, known for its long lifespan and low luminosity.