Thursday, November 13, 2008

11/13 Class

We did not have class on 11/11 due to Veteran's day. Today's class began with Dr. Ezrailson giving us a brief overview about our final project. It is called a "Bell Ringer" in which we will prepare what we will do at the beginning of class to get our students attention. Next, we began to work on our "Good Sock" lab that we did not finish last week. My group completely started over since we did not collect any data the last class period. We put hot water into two glass bottles and placed a wool sock over one of them and the other one was left alone because it was the dependent variable. However, we did have some technical difficulties with our Lab Quest and were unable to collect any data. Dr. Ezrailson tried to help us many times, but the little computer would not work until the very end. She wanted to show us that we should not give up or ever let our students give up, you just have to keep trying. Ultimately, we ran out of time and had to use our neighbor's data. From this data we discovered that the wool sock is a better insulator than the dry cotton and the wet cotton sock. When the bottle was covered with the wet sock the temperature dropped the most becuase the heat transfered from the warmer area to the cooler area. This taught us that wet clothing in cool weather will cause you to be much more cold than wearing dry clothes. After answering questions on our lab worksheets we discussed our results with the class. Overall, this project was very interesting. I think that by using this project in the future my students will have a better grasp on the idea of heat transfer.

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