Cotten and Wool Socks

Today's class period was focused on the "A Good Sock" experiment. Last Tuesday when some of the groups tried to perform their experiment, they could not get it to work so we spent the whole class period on the experiments today. Our groups experiment once again would not work so we had to work with another group. We assigned roles for each of the individuals in the group and made sure everyone did his or her share. I really enjoyed this experiment because the results were not what I expected them to be. In the experiment, we took four plastic bottles and filled them up hot water. We left one plastic bottle uncovered, one plastic bottle covered in a wool sock, one bottle covered in a cotton sock, and the last bottle covered in a wet cotton sock. After we put the socks on the bottles, we took the temperature of the water bottles and left the probes in the bottles for twenty minutes and then checked the temperature again to see if there was a change. It was interesting to find out that each plastic bottles' temperature decreased besides the bottle that had a wet cotton sock covering it. I was astonished by this because I hypothesized that wool sock would have a temperature increase and not a wet cotton sock. I believe that this experiment was very interesting and I think numerous kids would be stunned by the results that they find!