Three-year-old Brielle showcases her knowledge of the periodic table. Some of the elements that she identifies are Germanium (Ge), Potassium (K), Iodine (I), and Chlorine (Cl). Brielle also states interesting facts about some of the elements.
The MythBusters have already debunked the myth that a few grams of caesium (Cs) or rubidium (Rb) will cause a hand grenade-sized explosion in a toilet. To further test the myth, they increase the amount to 2.5 kilograms and run the test in a bathtub with sodium (Na) and potassium (K).