Results: Our first experiment (involving the soda and pop rocks) didn't work out well. We had most of the pop rocks filled in the balloon (some fell out), and we secured it on the top of the filled soda can. We let the pop rocks go, and nothing happened. This was likely due to the fact that most of the air was escaping.
Our second (and final) experiment involved the baking soda and vinegar. This experiment actually worked, but the balloon didn't inflate very much. We poured the baking soda into the balloon, put vinegar in the cup, and dumped the baking soda in. It fizzed, and the balloon inflated slightly. It stopped halfway up.
My hypothesis was correct - to an extent. I had visioned it inflating to giant sizes, but it didn't get very far.
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