Conservation of Mass Lab Investigation

In this lab, we used two different mixtures in soda bottles. The first test was mixing soda with pop rocks (known as the exploding candy). The second test was with the pretty cliche vinegar and baking soda, but it still was pretty cool. The point was to see which one let out more gas, the soda mixture or the vinegar mixture by attaching a balloon to the top of the bottle.

My hypothesis was that the two mixtures would obviously fizz, bubble and give off gas. I had also thought that the vinegar/baking soda mix would make the balloon bigger, because it is the most commonly used mixture for volcanoes and experiments like that. If the pop rock mixture worked better, why wouldn't everyone use that? Lets see if I was right:
















*here you can see the first balloon that was pretty good sized, using the soda and pop rocks, but check out this one:















*here you can see how much the vinegar and baking soda is fizzing and making bubbles, and how much more gas went into the balloon, and it wasn't even done yet!

I accepted my hypothesis, the vinegar mixture made a bigger balloon and released more gas, but the pop rock mix did a pretty good job too (plus it tastes a LOT better). The vinegar mix balloon also filled grew much faster, which just adds to the fact that it is the ideal choice for volcano experiments and such.