Sunday, May 30, 2010

Week 4 blog

So this week we did an experiment with water and heat transfer. I thought it was quite interesting to see how the temperature of water can change based on what you cover it with. I was wondering how this would change if you used a travel coffee mug and instead of covering it with the lid used the objects we used in the experiment.

The objects I used to cover my coffee mugs were aluminum foil, wax paper, Saran wrap, and a paper towel. The foil had the hottest temperature at the end of the experiment. The paper towel and Saran wrap had the coolest temperature.

However, this not what my blog is about. I am writing about what other items would be interesting to test using this concept. Living out in Vegas we all know it gets hot over the summer. My school used to be year round and once those 100 degree temperatures hit there was no turning back. One experiment that a colleague told me about was a hot dog in shoe box. Well what you do is line a shoe box with aluminum foil, place the hot dog inside and in a matter of hours under the hot sun you get lunch. After thinking about the hot dog experiment and the one that was required this week I began to think about what would happen if we tried lining the box with other materials other than foil. Student could compare the temperature of the hot dogs after being outside for a few hours. The experiment would begin in the morning by setting the boxes outside, and then in the afternoon bring them in to find out the temperatures.

The students would be able to choose the materials that they would like to use, and give a reason as to why they think it would work or would not work. This experiment would be able to be applied to second graders because we can discuss how certain objects are insulators and others are conductors. It would be in simplified terms, but it would still get the point across.

This experiment would be relevant to their lives because my students love to eat. Any time there is food mentioned in my room they are quiet and their eyes light up. The area I teach in is lower class and many have been laid off or have horrible pay. So any chance I give my students to find alternative ways to cook their own food and for little money would benefit them. I have students who have to make their own meals because the parent(s) is off working two or three jobs.

Sadly now my school is nine month, but it still is hot sometimes in May and the beginning of June. This is something I will think about doing next year.

Temperature is a concept that my students tend to struggle with, and so after teaching about tempertature this would be a great review lesson.

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