I liked the idea of a moon phase viewer (that I saw here), for kids to go out and explore! So, I created one to print and laminate. To extend the activity, I had kids draw the moon phase they saw using their viewer for ten nights on the sheet below the viewer. The viewer would also be a fun summer activity for kids and parents to watch the moon go through all of its phases. It takes 28 days to go through all 8 phases.