Chemistry Classes Make Ice Cream With Nitrogen

At RHAM High School, the chemistry classes used liquid nitrogen to make ice cream. The chemistry teachers, Mr. Linden, Mrs. Lichatz, and Mrs. Bjorbekk recieved the liquid nitrogen on Monday night. The temperature of the nitrogen was -196 degrees Celsius. The students had been learning about the different states of matter over the previous weeks and before they made the ice cream they experimented with the nitrogen by shrinking ballons in it and freezing various items. The favorite part of the class period was making the ice cream, however. The recipe included:

5 cups of milk

1 quart heavy cream

2 cups of sugar

4 eggs

2 tablespoons of vanilla

a pinch of salt

some liquid nitrogen