Corn Starch

In science class a few days ago we did an experiment with corn starch to demonstrate how the inside of the earth works. First, we pured some corn starch in a beaker and then added some water and food coloring. This was supposed to show the plasticity in the earth. When i held the liquid in my hand it oozed out onto the table but when rubbed together and moved around, it hardened. This was supposed to show how when the molted metal under the tectonic plates moved they would stay in place and it showed that they had the ability to change from both soiled and liquid. This was a messy experiment but was very educational and i enjoyed it. In conclusion, i got an idea of how the outer core functioned.