We were learning about ' when vinegar and baking soda mix, an endothermic reaction occurs. This produces carbon dioxide which inflates the balloon. The endothermic chemical reaction will also lower the temperature in the area surrounding the vinegar and baking soda so significantly that you will be able to easily notice the change in temperature.
Next time I will ' When I try this experiment I will put more baking soda in a bottle and some more vinegar.
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