Back to Science in the kitchen-- April 21st, 2011

For our last Science club meeting we decided it would be fun to do some more kitchen science. We had the students make ice cream. Some students make it with two zip lock bags and other students made ice cream with two cans (a small can and a large can). The students leaned that salt had to be added to the ice to help with the heat energy. To make ice cream, you must remove heat energy from the cream. That's why you use ice. Heat energy moves from places with more heat energy to places with less. So, heat energy flows from the cream to the ice, cooling the cream and melting the ice. Once the cream loses enough heat energy, it freezes and becomes a solid. Once the ice gains enough heat energy, it melts and becomes a liquid.
By the end each group had made a different flavor of ice cream that tasted much better then the store bought kind. The students also left the last science club meeting with frozen hands. :)