Space & Earth Science
Why Do We Have Seasons?
Seasons are not caused by Earth getting closer to or further from the sun. They are caused by Earth's axial tilt, which changes the angle and duration of sunlight at different times of year.
seasonsEarth
Space & Astronomy
Why Does the Moon Change Shape?
The moon does not actually change shape. Its phases are caused by the changing angle at which we see its sunlit half as it orbits Earth.
moonlunar phases