Science Fun!!!!!!

In my science class we had an interesting experiment. We are learning about the Earth. Our teacher wanted us to learn more about the mantel. She explained to us that the mantel is a solid but acts as a liquid. Many of us were confused. How could a solid be a liquid? Well we conducted this experiment. First you will need the following materials: half a cup of cornstarch, half a cup of water, a spoon, and two beakers. Next pour the water into the cornstarch. Take the spoon and mix the water and cornstarch together. You will realize that the mixture will become harder and harder to stir. After mixing take your hand and take a good amount of the mixture. If you let it be the mixture will melt in your hand and start to drip down. But, if you touch it, it will suddenly become hard. This is a good example of what happens in the mantel. Plasticity is the term that explains this experiment. The mantel has this specific property. As a result the crust can float on the mantel. I learned a lot about the Earth and this experiment was fun!!!