No activities, but I found some awesome websites a few years ago when I was searching. I just Googled "lunar phases," and I found video clips, a daily website (it's asking too much to bring the kiddos back to school at night to view the moon

), and lots of information. Edhelper.com had a good worksheet on the phases and NASA had bunches of stuff.
Sorry I can't be more specific, but my resources are at school.