Taking advantage of a few moments of sunny and only moderately freezing temperatures, the budding kindergarten physicists took our clipboards and went outside to find examples of the three states of matter. First, we had a brief discussion of solids, liquids and gases and their properties. Students were asked to find as many of each as they could and list them in the appropriate places. Once outside, there was a spirited debate as to which category snow would fall into. It was finally decided that it must be a solid because it changes to a liquid once it melts! Gases were the toughest to find, since they are usually invisible but feeling the wind on our faces and seeing a cloud moving across the sky, let us know they were there.