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I collect books of science experiments, and it amazes me how many still teach the three states of matter. I thought that this time, we would look at the FOUR states of matter. (Actually, there are more states of matter, but these four are the common ones.)
This week's experiment came to me from my good friend Bob Cox. He told me about the trick and wanted to know why it worked. It took some thought and testing to come up with a theory of what is happening and then several e-mails to experts to confirm that I was on the right track.
I took this photo during a boat ride on the Colorado River. I liked the way the canyon walls reflected in the water near the boat's wake. Since the water was crystal clear, why do you see the reflection of the canyon, instead of seeing through to the bottom of the river?
