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Re: volcanos


Date: Tue Mar 13 2001 - 18:14:03 PST

That works great. Put the vinegar in first. I used to do this with my
pre-schoolers to show how gas expands. I would put the vinegar in a clear
soda bottle (a small one) and put the baking soda in a balloon. When the
balloon was fitted over the lip of the bottle, the baking soda dropped into
the vinegar. Viola! The balloon expands. My four year olds used to love it! JH