In many children's stories, and in many adults' stories as well, the moon automatically rises with the sunset and sets at sunrise. Except this isn't really how it works. In my research for a current short story draft, I decided I needed to learn more about the phases of the moon, and about how the moon creates tides. I found this link about moon phases, and this one from the same site about how these phases correspond with tides. I had no idea that the new moon rises at sunrise, and sets at sunset (which would explain why it's so hard to see!).
I hope you find it interesting as well!