Unit Test & New Topic

   I found this week to be very interesting. On Tuesday we took a unit test.  I entered the test feeling pretty positive about my results and understanding on what we were being tested on. Although, I did have reservations because some ideas weren't really clarified. I wouldn't say it was expected but I was kind of in "awe" when I realized I had failed the test. I don't really know what to really think about it other then say do test corrections. I guess I had the wrong understanding of the information being taught throughout these past few weeks. This didn’t sit well with me so I definitely plan on fixing my mistakes. Nonetheless, I continued onto new experiments and lessons.

      After the unit test, on Thursday and Friday our class began experimenting on a new topic. We did an experiment with cold water, hot water and dye. First starting off with a beaker filled with cold water, drops of dye were placed into the water. My table group and I observed as the dye resignated in one general areas of the beaker and slowly fell to the bottom. We agreed that the dye mainly stayed the in the middle of the beakers. Afterward, we tested the beaker filled with hot water. We observed as the dye and the hot water mixed there was a more of a diffusion process. We explored the reasoning for how and why the actions took place during class white boards discussions. During the discussion, our class came to a conclusion for why these reactions happen. The hot water particles have more energy so they move around a lot faster. When the dye touched the hot dye is acted as the water and move around quickly. This differentiates from the cold water particles because they move much slower, so when the dye touched the water and moved slowly and stayed one area. (cold on left, hot on right).

As a class, we observed a second experiment similar to our first one. This experiment was conducted by the teacher. He started off with a beaker of water filled with ice cubes. In this beaker, there was a tube of alcohol that was connected to a thinner tube which acted as a thermometer. The red liquid(alcohol) started off low. After class discussion, Dr. Finnan took out the ice cubes and turned on the hot plate which the beaker was sitting upon. With close observation, we found that as the water began to warm up, the alcohol began to rising. With deep discussion within the class, we found that this meant there was a heat transfer between that hot plate and the water, and the water and the alcohol.

      This week no one truly specified the topic for our next lesson but I think it could possibly involve: diffusion, osmosis, and heat transfer. I definitely look forward to finding out more information and purposes to these experiments in the upcoming week. For the unit test, I plan on doing test corrections and hopefully, correcting the information I wrongly thought about the tested topics.