____________________
don't
create
their
own
light
.
They
only
____________________
light
from
stars
.
The
____________________
is
our
star
.
The
sun
makes
a
lot
of
____________________
and
light
.
Don't
look
____________________
at
the
sun
.
It
could
____________________
your
eyes
.
One
million
____________________
could
fit
inside
the
sun
.
Our
sun
and
Earth
are
part
of
what
we
call
our
____________________
____________________
.
Gravity
is
an
invisible
force
that
____________________
objects
forward
a
planet
or
star
.
