Unit 4 review

Stars can take different paths due to having different _____________

• temperature
• mass
• brightness
• color

All stars start as gas and dust in a(n)

• nebula
• black hole
• red giant
• black dwarf

After the main sequence, a low mass star becomes a

• black dwarf
• protostar
• red giant
• supergiant

After a supergiant, a high mass star explodes and forms a

• supernova
• red giant
• black hole
• planetary nebula

A high mass star can end as this stage, which is so dense that not even light can escape!

• black dwarf
• white dwarf
• supernova
• black hole

Our sun is known as a middle-aged, stable star. Also known as a ____________________.

• Gas Giant

• Nebula

• Pulsar

• Main Sequence Star

What fuel do main sequence stars use to start off nuclear fusion?

• Oxygen

• Hydrogen

• Carbon

• Iron

The hottest stars have surface temperatures up to 35,000 degrees and are __________ in color

• red

• blue

• yellow

• orange

If a "high mass" star is not heavy ENOUGH to become a black hole, it will end its cycle in a:

• black hole

• white dwarf

• neutron star

• black dwarf

Spectral lines emitted from stars give us what information:

• how big the star is

• what temperature the star is

• how far the star is from earth

• what elements the star is composed of