Ridwan's Conclusion
My claim that earth(dirt) would best insulate ice from melting was correct,but it had a downside to it though. What I mean is for most weeks it was at 0 centimeters, but the water was melted and the earth(dirt) had absorbed it before the week was done. Based on the table and graph earth is the best insulator because the average is 1 centimeter. Earth (dirt) wouldn’t be the best insulator since it absorbed the water. Earth is not best choice for a insulator, I would say that air (control) would be the next best thing based on the graph.
Gadiel's Conclusion
My hypothesis proved to be wrong, as the paper towel melted the ice the most out of all of the tested insulators. The towel melted an average of 1 cm a week making it the leakiest on the table. The towel also absorbed most of the water, which, unlike earth, can be squeezed out of it, provided some more water. The towel seemed to have warmed the ice as the towel was made of, well, paper which can be heated, thus warming the ice even further, making it overload the towel with even more water.