Dancing Raisins!

What will happen when you mix raisins with 7-up? Will the rainsins dance, sink and explode or dissolve?  The kids had to make a hypothesis for if they would dissolve, sink and explode, float, or dance up and down.  Most predicted that they would sink and explode, but they soon found out that the bubbles made the raisins dance up and down! The kids were so excited to see the rainsins dance up and down!