Why are there Seven Days in a Week?
Do you know?
At the same time, the Moon orbit around the Earth and the Earth orbit around the Sun. The Moon is visible to us when light from the Sun is shone on it. On certain days, the moon is not visible to us because the sunlight it is blocked by the Earth. It takes one month for the moon to complete one orbit round the earth while it takes one year for the Earth to rotate round the Sun. As the earth orbit around the Sun on a path that is oval and not totally circle. On certain months, the Earth is further away from the Sun and so we feel colder, having our winter and autumn seasons.