It was another Mad Science day today! Our homeschool group had a great class on dry ice. The instructor was hysterical and the kids loved him. He did great experiments and had the kids do a hands-on activity, making their own seltzer. J read about the properties of dry ice before we got there. She learned that dry ice is 109 degrees below zero, sublimation is changing right from a solid to a gas - and that's why it's called "dry" ice, what carbon dioxide is, and what dry ice is used for. On the way to the class, she felt like studying the periodic table of elements, read off each one to me, described its properties, and asked a lot of great questions. W participated a lot in the class and was fascinated at the experiments. We're making this a monthly event and they can't wait to go to the next one!