Hypothesis: We all know the moon does not actually shrink, but I do believe that when the moon rises it appears to be much larger than it does when it reaches its highest point in the sky. I think that after the moon rises to its highest point, it will shrink down a half an inch on the ruler.
Observations
Thursday November 29, 2012: The moon rose tonight at 7:40 PM. As I began to observe, I noticed that the moon has a distinct red-orange tint to it. It appears to have some sunlight reflecting off of its surface. The moon at this point measures at roughly 1 ¼ inches in diameter on the measuring stick.
Friday November 30, 2012: The moon is now at its highest point in the night sky and it is now approximately 1:45 AM. The red-orange tint has gone away as there is no more sunlight for it to reflect. The moon has definitely shrunk as the night has progressed. It appears to be roughly ¾ of an inch in diameter when my arm is fully extended. This is roughly the same amount of a decrease as I had predicted in my hypothesis.
Friday November 30, 2012: The moon rose tonight at 8:10 PM and appears to be roughly the same diameter as the night before. Granted, it is no longer as full as the night before, but still roughly the same. I measured 1 ¼ inches tonight as well as last.
Saturday November 1, 2012: The moon reached its highest