Stellar Life Cycles

The Sun is an average sized main sequence star. What will it become when it runs out of hydrogen?

• red giant

• supergiant

• supernova

• black hole

After a supernova, a star can become a...

• neutron star

• black hole

• supergiant

• main sequence star

All stars begin in the_____ stage.

• neutron star

• black hole

• nebula

• giant

A protostar becomes a main sequence star when...

• nuclear fusion stars

• it loses all energy

• it explodes

• turns red

The most massive stars in the universe will eventually become...

• black holes

• white dwarfs

• red giants

• protostars

When a white dwarf cools and loses all of its energy, it becomes a____.

• black holes

• black dwarf

• red giants

• protostars

When a main sequence star much more massive than the Sun evolves, what does it become?

• white dwarf

• supergiant

• red giants

• protostars

What type of star will explode in a supernova?

• white dwarf

• supergiant

• red giant

• protostar

A neutron star is formed after a...

• white dwarf

• supernova

• red giant

• protostar

A large cloud of gas and dust is called a____.

• white dwarf

• supernova

• black hole

• nebula