Summary Do a series of activities using dry ice. Focus on States of Matter, or Weather, or just dry ice fun. Science content Chemistry: States of Matter, Properties of Materials (K-7) Activities in this lesson Dry ice in water Clouds, tornado and vortices with dry ice Dry ice squealing and vibrating Air cannon (with dry ice) Materials Materials in the chosen activities Procedure Do a selection of activities. For a States of Matter focus: Review states of matter. Draw up a temperature number line and add the state changes in water. Show dry ice, discuss when it sublimates, and add it to the number line.Dry ice squealing on a spoon demonstration - the metal speeds up sublimation. Dry ice in tubs on table groups to observe clouds. Show students how to make tornados. End with a lemonade soda drink (add dry ice to lemonade in a pitcher, then sieve before distributing to students for drinking). Grades taught Gr 2 Gr 3 Gr 4 Gr 5
