The experiments. 1. bring the balloon filling 1 tablespoon baking powder. Down in balloons. 2. packing of vinegar into a clear plastic jar about 1/4 of the bottle. 3. cover baking powder filling the balloons on Pak, plastic bottles, pulling firmly (be careful not to just fall into the baking powder, bottles). 4. Once you're sure that the balloon attached to the bottles tightly, and then to raise the balloon up to make baking powder drop-down list in the vinegar. Observed trials.
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