Stellar Evolution

Front

What determines the path a star takes in its evolution?

Back

Mass

Front

Why do high-mass stars burn hotter and brighter?

Back

They have more fuel at their cores.

Front

What is the initial stage of star formation called?

Back

Protostar

Front

What is a nebula?

Back

A cloud of gas and dust; typically 70% hydrogen, 28% helium, and 2% heavier elements.

Front

What do all stars begin as?

Back

Nebula

Front

What is the process by which stars generate energy?

Back

Nuclear fusion.

Tags

NGSS.HS-ESS1-1

Front

What is a supernova?

Back

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

Tags

NGSS.HS-ESS1-3

Front

What is a white dwarf?

Back

A small, dense star that is the remnant of a low or medium mass star after it has exhausted its nuclear fuel.

Front

What is a black hole?

Back

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

Front

What is the main sequence phase of a star?

Back

The longest phase in a star's life cycle where it fuses hydrogen into helium in its core.

Tags

NGSS.HS-ESS1-1