Star birth
Which is more dense a nebula or a star
a star
What happens when a star runs out of fuel
it either dies or becomes a supernova
Name two examples of what can happen after a supernova
black hole or neutron star
about how big are white and black dwarfs
are both similar sizes to earth
what are stars made of
gas and dust
What is a nebula
chemical reactions happen and stars are created.
What can escape a black hole
nothing
What causes a supernova
when a supergiant star runs out of fuel and explodes
What is a planetary nebula
ring-shaped nebula formed by an expanding shell of gas around a old star
do black holes have gravity
yes and a lot of it
What chemical is made when hydrogen and atoms combine
helium
What does a star's mass have to do with its lifespan
less mass the star has the longer it lives
What is a black hole
A dead super giant that has a huge amount of gravity
What is a white dwarf
dead Red giant that lost its fuel but still looks illuminated
Which is bigger a neutron star or a white dwarf
a white dwarf
What is a star called when it is just starting to form, but it hasn't gone through nuclear fusion yet?
protostar.
What happens to a supergiant star after it dies
explodes into a supernova
What is a neutron star
star that remains after a super giant's death
What is a black dwarf
a dead red giant
What is nuclear fusion
the process by which atoms combine to form heavier atoms
How does a star form
A star forms when something interrupts a nebula and causes it to become dense in one spot, and gravity intensifies in that spot causing it to become larger and denser even quicker.
What are the radio signals that a neutron star emits
pulsars
About how long does a supergiant star’s life last
about 10 million years
About how long does a giant star’s life last
about 10 billion years
Does a white dwarf run on fuel
no