I, ROCK

A student’s class report about interviewing a senior citizen takes on unexpected perspective when a rock in his shoe pipes up to retrace its own four-billion-year history.

Depicted in the cartoon illustrations as a small, potato-shaped pebble with googly eyes, the rocky raconteur begins by noting that it’s made up of minerals such as quartz, zircon, and biotite. It then proceeds to describe a journey that began with a two-billion-year stay in Earth’s mantle (“Wow, I was down there for ages”), followed by repeated exciting experiences with volcanoes (KABLOOEY!”) and other geological forces—as well as transformations along the way from igneous to sedimentary to metamorphic. That the same rock can change repeatedly from one type to another may be the main lesson readers will absorb from this breezy round, though the note of self-affirmation toward the end (“I’m proud to say that I’m here, I’m me, and…I ROCK!”) will never go amiss. The children cheering at the end are racially diverse, as well as plainly prepared to take in Slivensky’s concluding expanded set of basic geological facts and an easy pop quiz.

A quick overview, sure to leave broader views of deep time in its wake.