Why does the moon change its shape and size?

Answer 1

Simply the moon does not change its shape it stays round all the time. The light from the sun only hits a part of the moon at a time. So simply you only see the part of the moon the light shines on

Answer 2

The moon changes its shape due to its position relative to the Earth and the sun, causing different portions of its illuminated surface to be visible from our perspective. The moon's apparent size can also vary slightly due to its elliptical orbit around the Earth, with its closest point being larger than its farthest point.

Answer 3

The moon doesn't change shapes. It goes through phases of no shadows on it, called a full moon to being totally in shadow, called a new moon. For more information, see the related link.

Answer 4

the moon change shapes because the sun helps that moon and when the sun goes down and the moon is have way you could see that the moon reflects it