star formation
what elements are stars mostly made of?
hydrogen
a very large star with high luminosity and what?
low surface temperature.
what is earthed formed from?
due to gravity
what do black holes do?
start new stars
what are stars based on?
their mass
what happens when the volume increases?
the surface temperature decreases.
what does gravity pull in ?
materials
massive light doesn't do what?
escape
the mass of a main sequence star determines?
all other properties
what are the two layers of the fusion at the core?
inner core is helium and the outer core.
earth formation caused earth to move what?
layers
what can be defended by what?
its grantytion affect
stars have a wider range in what?
size, temperature, color, and brightness.
when the temperature is wed up what happens?
the stars core starts to collapse.
gravity pulled what materials?
denser
if a black hole is pulling in matter?
collision between particles can heat
what change in when getting older?
size, color, and Category
when the temperature is high enough what happens?
helium fuses into heaver elements.
what causes earth to heat up and be molded
collision and pressure
if the core after a supernova is more then about 5 times the mass of the sun creates, what?
a black hole