Not too long ago we had our homeschool group's Academics Fair were you make a poster about a person place etc. Sam and I did one all about dry ice and did experiments with it. If you have not ever done stuff with dry ice, it is fun; but, a little dangerous, it is -110degrees below zero! Jordan did a poster about Thomas Jefferson, Rachel on the jungle, and Abby on the farm. Sam and I still think we were the best!