axis day Earth sixty night Earth rotation Sun Earth twenty evening four four revolution day eight year four twelve Earth
The
takes
one
to
move
around
the
.
This
movement
is
called
.
There
are
months
and
seasons
in
one
year
.
The
is
constantly
turning
on
its
.
This
is
why
we
have
day
and
night
.
This
movement
is
called
.
The
takes
one
to
rotate
once
.
On
the
side
of
the
facing
the
Sun
it
is
,
and
on
the
other
side
it
is
.
There
are
-
hours
in
a
day
.
There
are
minutes
in
an
hour
.
There
are
parts
of
a
day
:
morning
,
afternoon
,
and
night
.
There
are
planets
in
the
Solar
System
.