We might have been more likely to attend class if our high school science teacher tested insane experiments like the one featured below. What we see here is the chemical named Gallium, atomic number 31. This man-made substance is typically used safely in electronics, but likes to devour certain substances like aluminum.
The iPhone 6’s back is made almost entirely of aluminum, Gallium’s favorite treat.
Scuffing up the back of the iPhone 6 allows the Gallium to get nice and personal with the casing. After some time we can see that the Gallium has obliterated the iPhone 6 in a total mess of pure chemical carnage.