The Universe Vocabulary

Front

What does the Big Bang Theory explain?

Back

The Big Bang Theory explains how our universe began.

Tags

NGSS.HS-ESS1-2

Front

What type of galaxy is characterized by spiral arms?

Back

A spiral galaxy.

Front

What is a massive explosion that occurs at the end of a high mass star's life cycle?

Back

A supernova.

Front

What is a normal sized star undergoing nuclear fusion of hydrogen into helium called?

Back

A main-sequence star.

Tags

NGSS.HS-ESS1-3

Front

What is the leftover center of a low-medium mass star after the red giant phase?

Back

A white dwarf.

Front

What is the term for the initial explosion that marks the beginning of the universe according to the Big Bang Theory?

Back

The Big Bang.

Tags

NGSS.HS-ESS1-2

Front

What type of galaxy has no defined shape and is often chaotic in appearance?

Back

An irregular galaxy.

Front

What is the process called when a star converts hydrogen into helium?

Back

Nuclear fusion.

Tags

NGSS.HS-ESS1-1

NGSS.HS-PS1-8

Front

What is the name of the stage in a star's life cycle where it expands and cools after exhausting its hydrogen fuel?

Back

Red giant phase.

Front

What is the term for a star that has collapsed under its own gravity and is extremely dense?

Back

A neutron star.