photo of the day (blinded me with science)


Ahh, homeschool science! It’s our favorite go to subject when we need a little inspiration and direction for our day. I read about this experiment on a blog of a cyber friend and fellow homeschooler. First, you add some vinegar to baking soda in a pan inside a larger tank. After the fizz of the combination of the vinegar and baking soda has subsided, you carefully blow a bubble over the tank so that the bubble falls into the tank.


If you do the experiment correctly, the bubble will settle into the tank and hover in there. The combination of the baking soda and vinegar gives off carbon dioxide, which is heavier than air. The bubble settles and rests on the layer of CO2 in the tank.


I know it’s hard to tell from the pictures, but believe me, this bubble was floating over the dish in the tank. We only managed to get this experiement to work with one bubble. We tried several times to no avail. Finally, we gave up trying and turned to blowing bubbles.


When Nick and I started this experiment, we were minus 2 key ingredients needed. Bubble juice and a bubble wand. Luckily, I had found a bottle of glycerin in the basement and knew that we could use it and some dish soap to make our own bubble juice. We found a wire hanger and bent one into the shape of a bubble wand. But the small wand didn’t make big enough bubbles for Nick’s taste and so he grabbed a tube from a roll of paper towels and the fun began. It didn’t end until we had made a complete mess of the playroom and both of us were covered in bubble juice.

~ by photobella on 15 January, 2009.

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