Great article- but I must make a correction. The "Elephant Toothpaste" is the result of an EXOTHERMIC chemical reaction, not a hydrothermic one. Also- we used potassium iodide, not the sodium iodide. The experiment would work with either one, but using both could be dangerous- as these are both highly reactive metals.
January 11, 2013 at 9:01 p.m.