Bubbling Lava Bottle - Cool Science Experiment

Here is one of the better Spangler episodes. Two young girls perform an experiment that results in the creation of a lava lamp! Water, oil, Alka Seltzer, and food coloring are combined in test tubes to create this effect. There is a lot of chemistry involved in the description, and the girls know their stuff. This demonstration could easily be done at home or in the classroom.