... Moon Story . ... There is a lesson in the poem, however: We on Earth always see the same side of the Moon because the Moon rotates exactly once and revolves exactly once in a month. ... see activity . ... children learn that the Moon is a sphere, and we always see the same side . ... why do we only see one side of the Moon? ... children learn that the Moon is always facing us because of its monthly cycle of rotation and revolution, and that the Sun affects how much of the Moon we see each night . ...