Over two hundred years ago, we began to glimpse the outlines of the great engine that sculpts and maintains the Earth as we know and love it. It took a century and a half to come up with a paradigma body of theory and worldviewthat we could sink our teeth into: plate tectonics. Today the general public is familiar with the basics of plates. But this quiz gets into the deep details that only a Geo-Whiz has mastered. Could you be one? Give the quiz a try.