deponti (deponti) wrote,
deponti
deponti

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Scientific experiment, STL, 170814

DnA suddenly decided that there would be a scientific experiment for the education and edification of KTB, and they chose one that involved baking soda, vinegar, a glass bottle, and a balloon.

D measured out the last of the baking soda:

DSC08146

KTB put it in the glass bottle, which held some vinegar:

DSC08148



The vinegar frothed up:

DSC08149

At this point, D realized that the mouth of the bottle was too wide to fit the balloon around, and the experiment was going to be repeated with a narrower-mouthed bottle:

DSC08155

Many hands were required for this delicate operation,because this was the last of the baking soda:

DSC08156

We watched the end result:

DSC08158

The observer observed.

DSC08161




I think The Booda was recording and documenting all this on his laptop, but I am not sure:

DSC08152

He certainly seemed happy with his efforts, though.

DSC08153


The balloon filled up, satisfyingly but not fully, with carbon di oxide gas:



Now I'd like KTB to realize that all the cooking done in the kitchen, that gets the food on the table, is also a series of chemical reactions, starting from the setting of her favourite "thayir" (yogurt)!
Tags: children, experimental, families, observation, photography, scientific terms, st louis, video, youtube
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