Our Little Science Experiment

So, on one of these unseasonably warm days, the boys were out playing in the sandbox.  Trey came in asking me to look at their volcano that they had built, or their "bolcano" as Isaac calls it.  That got the wheels turning in my head.  I remember when I was little, we would make volcanoes in the old tractor tire sandbox we had.  I used to enjoy it so much, I thought that the boys would love to see their volcano "erupt."  We took some water, a few tablespoons of baking soda, and some red food coloring.  We mixed it up, put it in a bottle and buried the bottle in their volcano (leaving the top exposed.)  Then the boys got to take turns pouring vinegar into the bottle, making it spew "lava."  They LOVED it!  I'm not sure exactly when our backyard will stop reaking of vinegar though!