In Day and Night, students discover that the Earth spins on an axis and rotates once per day.
(the Earth; rotates; T:once per day) (students; discover; that the Earth spins on an axis and rotates once per day; T:In Day and Night) Context(students discover,List([18, 35))):(the Earth; spins; )
students discover,List([18, 35))
the Earth students the Earth
rotates discover spins
T:once per day
that the Earth spins on an axis and rotates once per day T:In Day and Night