stars
stars begin their lives as parts of
nebula's
red giant
when these stars begin to run out of fuel they become
stars begin there lives as of dust and gas called
nebula
what are classes of stars
O,B,A,F,G,K,M
-- pulls the gas ans dust together
gravity
the outer layers drift out forming a
planetary nebula
the remains of the core may form a
neutron star
gravity may cause the nebula to
contract
true or false if a star is vary large it will burn out faster
true
a -- is a large cloud of gas and dust together
nebula
the blue white core of the star cools to become a
blue white dwarf
some materials may form a
nebula
matter in the gas cloud will begin to condense into dense region called a
pro star
true or false main sequence is most of the stars life
true
the more mass a star has the -- it burns out
faster
over billions of years it cools more and becomes a -- dwarf
black
red super giants they may explode this is called a
super nova
the pro star continues to condense, it heats up eventually, it reaches a critical mass and begins
nuclear fusion
witch is hotter blue or red
blue
a star is born when the -- gas and dust becomes so hot that ------ starts
contracting ,nuclear fusion
the star starts to run out of
fuel
a neutron star can also form a
black hole
begins the phase of star
main sequence
witch color is class g
yellow