Fall 2016: 2nd Grade: Exploring Liquid Nitrogen at Sub Zero Ice Cream and Yogurt The 2nd Grade headed out to Sub Zero Ice Cream and Yogurt in Federal Way to pair with their inquiry unit: Solids & Liquids. Students learned about liquid nitrogen and what happens to it when it is exposed to water, gummy bears and cream. Students also examined what happens to liquid nitrogen when it is used to blow up balloons and gets thrown on the floor. After observing an engaging demonstration with the nitrogen, the class then determined how they wanted to experience their ice cream. Sub Zero staff blasted the class's chosen cream and mix-ins with liquid nitrogen to a predetermined hardness. The outcome: ice cream! Students had a terrific time embarking on this creative (and tasty!) field trip all in the spirit of solid and liquid states of matter!