At various stages in its orbit it is called a crescent moon, a quarter moon and a gibbous moon. It is called a full moon when we can see all of its sunlit side. Students could use ping-pong balls ...
Excerpted from The Universe in 100 Colors: Weird and Wondrous Colors from Science and Nature by Tyler Thrasher and Terry Mudge. September 24, 2024, Sasquatch Books. Published with permission.