MIKE MOSS SAYS:     Dorothy,     I'd suggest a web search using groups of terms like "lunar phases full quarter" or "moon cycle full new" and so on. That should turn up a number of sources not only of images illustrating the phases the moon's appearance goes through during a lunar cycle, but also some descriptions and diagrams that show why it looks that way to those of us on earth. Here are a couple of the many examples that might turn up...

http://aa.usno.navy.mil/faq/docs/moon_phases.php

Other WRAL Top Stories

 

http://www.almanac.com/astronomy/moon/calendar/index.php