Question

Why does the moon’s shape and brightness appear to change?

Answer 1

As the Moon orbits our planet, its varying position means that the Sun lights up different regions, creating the illusion that the Moon is changing shape over time.

Step-by-step explanation:

This is because it rotates once on its axis in exactly the same time it takes to orbit Earth – 27 days and seven hours.

Answer 2

the moons light or shape that is shown is how much light it is emitting from the sun. so if the moon doesn’t see that much sun, then it won’t be as visible as if it seen a lot of sun.