Fizzy Purple Cows

To celebrate all that we have learned about matter, we did one last experiment. We made fizzy purple cows! What is a fizzy purple cow? It is just a root beer float with grape soda instead of root beer. The students decided that the ice cream was a solid, the soda was a liquid, and the bubbles were a gas. I was very impressed with how quickly the students realized the bubbles were a gas.