Cold Air Balloon Observation Part Two

 We were learning about what would happen if we used more vinegar and more baking soda in the experiment. We used eight tbsp of baking soda and four cups of vinegar, the bottle we used was a milk one. The neck of bottle was to wide though so when the balloon filled up it split at the neck and liquid spewed everywhere.

What happened was the balloon was too small to fit over the larger bottle and kept ripping. On the second attempt it help with a small spilt. The reaction was so powerful it began to fill the balloon with liquid. This made the balloon tip, the reaction continued spewing out of the top of the bottle with quite considerable force. The liquid that spilled onto the concrete felt cold to the touch. This was the endothermic reaction. 

I observed that if we had a taller, skinnier bottle and a bigger, tougher balloon then the experiment might work a bit better and we could find out what would actually happen if we used all the ingredients that we did.  

Next time I wonder what would happen if we used a long, skinny balloon as well as a long skinny bottle. I predict that if we use a long skinny balloon it might fill up quicker and burst sooner.