We
,
human
beings
,
live
in
____________________
.
It
is
a
planet
inside
the
____________________
____________________
.
The
center
of
the
Solar
System
is
the
Sun
because
all
the
planets
move
around
it
.
The
Sun
is
a
____________________
and
the
Earth
moves
around
it
.
The
Earth
takes
365
days
and
____________________
____________________
to
move
around
the
Sun
.
Planets
,
including
the
Earth
,
spin
around
their
own
____________________
and
this
is
what
we
call
the
____________________
movement
.
But
they
also
move
around
the
Sun
and
that's
what
we
call
the
____________________
movement
.
We
have
days
and
nights
thanks
to
the
____________________
movement
.
During
nights
we
see
the
____________________
in
the
sky
.
The
Moon
is
a
____________________
that
moves
around
the
Earth
.
We
always
see
the
same
face
of
the
Moon
because
it
takes
____________________
days
to
spin
around
itself
and
also
____________________
days
to
move
around
the
____________________
.
