Earth is in a continuous dance with two other spheres: the moon and sun. Explore the predictable patterns that emerge from this interplay—such as day, night, seasons, eclipses, and high and low tides—with this interactive lesson.
The animations Sky Dance, Days, Nights & Seasons, Moon Phases, Shadows & Eclipses, and Gravity & Tides can also be found in PBS NC’s Science in Sixty Seconds collection on PBS Learning Media.