Moon Phases

I noticed that the parts of the moon change when the position it is to the sun changes, because before I always thought that part of the moon is blocked because there was a meteorite blocking it.

We see different parts of the moon each nght because we can only see the moon when the sunlight is reflecting off it. So as the moon orbits the earth, the sunlight hits less or more of the moon, so we sometimes see a lot of the moon and sometimes we don't.

A lunar month is the amount of time from 1 full moon to the next.