Chicken Wing Dissection Lab

In science class our teacher dissected a chicken wing, and we observed the different parts. First we looked at the skin, which was bumpy because feathers had been pulled out. Then after she made a cut, we saw the fat which was right underneath the skin. After the fat, we saw the muscles, which she pulled and squeezed, and the wing moved accordingly. Then we looked at the tendons, which were at the end of the muscles, and attached to the bone. After our teacher pulled off all of the muscle, we saw the joints which connected the bones, and the ligaments that were connected to the joints. Lastly, we saw the cartilage which helps the bone move without them touching each other. This lab really helped me understand the different types of tissue better.

Diffusion Lab

          In our science class today, we tried a diffusion lab. We put cornstarch and water in a plastic baggie, and put water and iodine in a beaker. We then put the baggie into the iodine solution and waited 15 minutes. The cornstarch in the baggie was supposed to turn purple, but it didn't work because the baggies were too strong, and the iodine didn't get through. I think the lab would have worked if we had cheaper baggies or if we waited longer.