As we see the natural change of life, we as well should study nature movements Examples include: sunrise, weather, fog, thunder, tornadoes; biological processes, decomposition, germination; physical processes, wave propagation, erosion; tidal flow, and natural disasters such as electromagnetic pulses, volcanic eruptions, and earthquakes. An aurora is a natural phenomenon. A natural phenomenon is an observable event which is not man-made History Over many intervals of time, natural phenomena have been observed by a series of countless events as a feature created by nature.