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...
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