Ever since I saw Bobby and his brothers do it on the Brady Bunch, I have wanted to make a homemade volcano. But amidst all the chaos that actually happened in our home growing up, a volcano was one of the few things that actually never exploded around our house. My desire was deepened last year when I saw that my friend Mona had taken on the task with her two boys.
Enter our new science book from the library. Almost from day one this is the experiment that I’ve wanted to do. This is the experiment that would make me the cool-mom-on-the-block. Sadly and unusually we were out of baking soda for the first couple of days. The second problem arose with the weather. Now you will remember that the Brady boys built their volcano in the back yard, which was a good thing considering the velocity of the explosion. By the time we had the baking soda the weather necessitated that the experiment be performed in doors. But as we all know science and four-year-olds cannot be stopped and so we nervously forged ahead.
The Ingredients
The Scientists
The geological process of volcano building
The overall experiment is unbelievably easy. We got sand from the neighborhood sandbox (completely ignoring the disgusting nature of a neighborhood sandbox). The instructions called for a small plastic bottle, the best I could do was a bottle for an old prescription of Tamaflu that my girls refused to take. After cleaning the bottle we filled it about half full of baking soda, then packed the sand around it. Then we poured red food coloring into the vinegar because we all know that lava is red. Then we poured the vinegar into the bottle.
Thankfully, explosion would be a little dramatic to describe what happened, but my girls were more than pleased with the eruption and we repeated it over and over again.









