The phases of the moon

My video is about the phases of the moon. The lunar revolution cause the moon changing the shapes, lunar revolution is when the moon revolves around the Earth.

In the different positions from the sun, there has New Moon, Waxing, Waxing Crescent, First Quarter, Waxing Gibbous, Full moon, Waning, Waning Gibbous, Last Quarter, and Waning Crescent. All of the shapes will be start in New Moon, Which you cannot see the moon, and changing the shapes, and finally it back to New Moon again. For this revolution, it takes 27.3 days.