Our Universe - STAAR Review

Front

As gravity pulls gas and dust in a nebula into a sphere that becomes denser and hotter, but before fusion begins, it is called a(n)

Back

protostar

Front

What type of star is at the lower right end of the main sequence on the H-R diagram?

Back

red dwarf

Front

A gigantic explosion that occurs at the end of a massive stars' life.

Back

supernova

Front

A star that expands and cools once it runs out of hydrogen.

Back

red giant

Front

A massive and dense object from which not even light can escape.

Back

black hole

Front

The color of a star depends on its

Back

temperature

Front

What color are the hottest stars?

Back

blue

Front

The distance light travels in a year.

Back

light year

Front

Where do all stars begin their life?

Back

Nebula

Front

What are the final two stages of an average mass star?

Back

white dwarf - black dwarf