First Class made our raisins dance! We put a fizzy drink and some raisins in a glass. Usually the bubbles in fizzy drinks rise to the top of the glass and pop. In our glass, the bubbles attached themselves to the raisins and carried the raisins up to the surface. When the bubbles popped at the surface, the raisins fell back down to the bottom of the glass and the process repeated itself. It was great.