|Hey, it changed to green!|
Today we didn't have any dry ice, so I pulled out an idea I'd seen on pinterest. We had food coloring in the fridge that I knew we'd never use again, so the dropper volcanoes were perfect.
M loved squirting the colored vinegar into the baking soda and seeing the colors fizz and change. He also made some clever observations like, "Colors are not good for eating, but they're good for science."
I agree, bud!