We decided to revisit an old favorite experiment - inflating a balloon using vinegar and baking soda. Since last time we had trouble getting the balloon on the bottle before all the gas escaped, we tried poking a hole in the bottle cap and attaching the balloon to the bottle cap. That let us quickly screw the cap on, balloon attached, before the gas escaped. We even tried filling the balloon with vinegar so that we could squeeze it out of the balloon and into the baking soda filled bottle after the cap was on. That let us control the reaction and capture the gas pretty well.
Saturday, June 18, 2011
Vinegar and baking soda balloon, take 2
We decided to revisit an old favorite experiment - inflating a balloon using vinegar and baking soda. Since last time we had trouble getting the balloon on the bottle before all the gas escaped, we tried poking a hole in the bottle cap and attaching the balloon to the bottle cap. That let us quickly screw the cap on, balloon attached, before the gas escaped. We even tried filling the balloon with vinegar so that we could squeeze it out of the balloon and into the baking soda filled bottle after the cap was on. That let us control the reaction and capture the gas pretty well.
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