So the wording on this graphic is a little misleading – No, it does not make “helium”. I got all excited thinking there might be an alternate way to get balloons to fly, and not have to spend money on helium. If only my 10th grade science class lessons would have “stuck” a little more! No, baking soda and vinegar do not make helium, and no, they won’t make a balloon fly. But they will produce carbon dioxide which will fill the balloon for you, so you don’t have to blow it up yourself. Not quite the same, but still a fun experiment to try with the kids!