Why+does+the+moon+sometimes+look+full,+but+sometimes+is+just+a+sliver+or+gone?

The Moon sometimes looks full and sometimes just a sliver because of Moon phases. Moon phases are when the Moon illuminates the sunlight in varying angles making the Moon look like different forms. About every month the Moon goes through all the phases. Click [|HERE] for a Moon phase simulator to understand it better.[|HERE] is a link to see what phase it will be any day. Click [|HERE] for a quiz