We are always experimenting with baking soda and vinegar. We made FIZZ, we used it to blow up a balloon, made sidewalk paint with it, and of course, the good 'ol Volcano. I thought it would be fun to make some paint with baking soda and see if we could make some fizzing paintings. I mixed baking soda with watercolors (you can use food coloring too) until it became a paint consistency. I put vinegar in jars with droppers. The kids painted their pictures and then drip dropped the vinegar onto their paintings to fizz them up! Super fun and easy! The pictures do not do this experience justice AT ALL! Go ahead and try it, you and your kids will love it!