the phases of the moon

The amount of the moon that you can see from earth depends  on how much of it is lit up by the sun.This amount changes each day.The phases of the moon depends on it's position in relation to the sun and earth .As the moon makes it way around the earth. we see the bright parts of the moons surface at different angles these are called the phases of the moon.It takes 29 days for the moon to orbit the earth.