Toca Lab

Toca Lab is a free-play app that introduces young kids to the general concept of the periodic table of elements and lets them experiment in a virtual chemistry lab. Using lab equipment such as a centrifuge, a Bunsen burner, an oscilloscope, test tubes, and cooling agents by simply swiping, tapping, or holding, kids can alter the 118 elements. The little blob-like representations of the elements have facial expressions that change as they're altered.