How to make a volcano in a bottle (with the help of a 3 year old)

Bub and I got all "Mr. Wizard" and built a volcano in a Pelligrino bottle.  That's right.  It has to be a pretentious, glass mineral water bottle to detract from the fact that I was in my pajamas - in my driveway - in the middle of the afternoon.


Ingredients:

Aforementioned Pelligrino bottle
baking soda
vinegar
food coloring

Our "outdoor cat", Binks, who joined us for the experiment.

Bub being a dinosaur running away from the lava.

Video records of this historic experiment were lost in a tragic computer crash.  Damn you, HP!!