Reflection on Corn Starch and Water Lab

Today in science class, my class and I made a lab experiment on corn starch and water. I was in a group with Mateja and Stefan. First of all we got a plastic tray and we poured corn starch in it, and mixed with it water. When we touched it, it was very gooey and awkward. When you try to hit it, it is very hard and stiff but when you touch it gently, it just turns in to bare liquid. It was fun, but the smell of it was not very nice. I would like to know why did this mixture behave like this.
6b made a huge mess in the science classroom [it is always a mess after a lab] but 6b cleaned everything so the classroom was spotless. This was one of my favorite science classes and I think that the majority in 6b were of the same opinion.