Nebula Main
Sequence Star
Protostar Red Giant
Red Super Planetary Nebula
Giant
Super Nova White Dwarf
Black Dwarf Neutron
Star
Black Hole Light Year
Astronomical Unit
life cycle. This
This stage in a star star has cooling
life cycle is temperatures,
characterized by expanding size, and
lots of mass all heavier elements
spread out in space. used for fuel.
It is the beginning
stage of all stars.
The contracting core
of a massive star
characterizes this
This stage in a star stage in a star life
life cycle is cycle. This star
characterized by a has cooling
contracting mass temperatures,
within a nebula that expanding size, and
is generating heat heavier elements
energy only. used for fuel.
In this stage of a
This stage in a star star life cycle,
life cycle is outward pressure
characterized by dominates over
nuclear fusion of gravity and the
hydrogen into outer layers of a
helium. star drift away.
In this stage of a
star life cycle,
The contracting core gravity dominates
of a middle-sized over pressure and
star characterizes the star implodes.
this stage in a star
The end of nuclear In this stage of the
fusion characterizes star life cycle,
this stage in a star gravity is so
life cycle. The only intense that nothing
energy given off by can escape and
this star is heat. energy turns into
mass.
This is what is left
after all the heat This is the process
energy of the star stars use to
is gone. “shine”. Choose
one: The nucleus of
the atom(s) A:
In this stage of the Combine
star life cycle, B: Separate
gravity is so
intense that
electrons and
protons combine. This is the unit
used to measure
distances between
stars.