Analytic Essay


The reason that the amount of the color red went down as the depth went up is because the light is absorbed and mostly lost in the process of going deeper underwater. Also, the wavelengths that help us see in color are differently absorbed at different depths. If the water is clear, the longest wavelength (which is red) is lost first, at rather shallow depths. However, if the water is full of suspended particles (such as plankton), the situation is reversed and the shortest wavelengths are lost first. Our project was done in the clear waters of the Pepperdine college pool, so the color red was lost first (It is for this reason that we specifically focused on the color red).

As a result, we found that the amount of the color red in each object that we looked at decreased as the depth underwater increased. Going from five feet, to ten feet, to fourteen feet, the amount of red in the color chart went from 199 mr (measurement of red), to 143 mr, to 100 mr. Going from five feet to ten feet, the amount of the color red in the picture of the rat went from 195 mr to 76 mr. Because of all of this, divers must be familiar with the colors they are looking at underwater, and the changes that are made in them depending on the depth, viewing distance, and the clarity of the water.

If we redesigned our experiment, we would do it indoors (if possible). This is because we feel that if the weather was not constantly changing, the results that we got would have differed slightly. If we had more time, as well, we would have liked to go to deeper depths and different atmospheres. We feel that this would have enhanced the fullness of our results.

Overall, the trends of our results that we predicted were correct, but our exact calculations were not.