Recently, we did a lab in science that was very helpful in learning about plasticity, but at the same time was very entertaining! First, we took a beacker and filled it with some cornstarch. Then, we took that beaker and we added some water into it. The next step was to take some and place it in our hands. as I did at first it felt a little goey but then it started to harden as I started to squeeze it. The mixture was a beige color and was as smooth as silk. The mixture was really either a liquid or a solid because it was a liquid at first but then slowly turned into a solid. When I put my finger in the mixture I could put it in very fast but it came out extremely slowly along with a whole lot of the mixture stuck on my finger. But, when I put my finger in slowly, it needed a little bit of pressure to come out. This mixture came be related to the Earth's mantle because if there is no heat and pressure, then , will be a liquid and be solid enough to be a sphere. Knowing that plasticity means: "ability to be shaped or formed" helped me understanding this even more.I think I have learned alot from this lab.
Sources : http://en.wikipedia.org/wiki/Plasticity
