Baking soda & colored vinegar

It's nice to have a little activity to do inside in the afternoon during the heat out here. So, I went through Pinterest and found some we could do easily, then put them on the calendar so we could keep organized.

On Monday, I gave each of the boys a Pyrex dish with baking soda. Then I dyed cups of vinegar and gave each boy a spoon. They loved putting the vinegar on the baking soda and watching it fizz! In the end, they started to dump the cups of vinegar to create lava flow and it more resembled a black swamp.