Answer:
Moons do not change shape. It's the Sun's job.
Explanation:
Moons do not change shape. They look to be changing shape because of the sunlight on it. When the moon is behind the Earth (sun, Earth, moon), it is a new moon because non of the sunlight is shining on it, which is why the moon does not show up in the sky. To have a full moon, the moon is in front of the Earth in a sun, moon, Earth order. When moon is halfway between the sun and Earth, it is a quarter/third quarter moon, when you only see half of the moon in the sky.
