Life Cycle of Stars

Front

What is the process called when hydrogen atoms combine to form helium?

Back

Nuclear fusion.

Tags

NGSS.HS-ESS1-1

NGSS.HS-PS1-8

Front

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

Back

Nebula.

Front

What happens when a nebula collapses under its own gravity?

Back

A protostar is formed.

Front

Do larger stars have a longer or shorter life cycle compared to smaller stars?

Back

Shorter life cycle.

Front

What is a protostar?

Back

A protostar is an early stage in the formation of a star, formed from a collapsing nebula.

Front

What is the main sequence in the life cycle of a star?

Back

The main sequence is the stable phase of a star's life where it fuses hydrogen into helium.

Tags

NGSS.HS-ESS1-1

Front

What is a supernova?

Back

A supernova is a powerful explosion that occurs at the end of a massive star's life cycle.

Tags

NGSS.HS-ESS1-3

Front

What is a white dwarf?

Back

A white dwarf is the remnant core of a star that has exhausted its nuclear fuel and shed its outer layers.

Tags

NGSS.HS-ESS1-1

Front

What is the difference between nuclear fusion and nuclear fission?

Back

Nuclear fusion combines light nuclei to form a heavier nucleus, while nuclear fission splits a heavy nucleus into lighter nuclei.

Tags

NGSS.HS-PS1-8

Front

What is a black dwarf?

Back

A black dwarf is a theoretical stellar remnant that forms when a white dwarf cools down and no longer emits significant heat or light.