" Older Than Dirt 's playful nature and innovative approach make learning science a true joy." --Shelf Awareness "The groundhog and worm's repartee results in a witty history of the planet that packs a remarkable amount of information into an engaging format." -- Publishers Weekly "The groundhog is utterly endearing, and the worm is remarkably expressive considering the absence of limbs and most facial features. Readers will be entertained, informed, and inspired to learn more. A guaranteed hit with science lovers and a best bet for convincing skeptics that science is indeed a grand and exciting adventure." -- Kirkus ? "In one hundred fact-crammed but surprisingly zippy pages, nonfiction graphic novelist extraordinaire Brown covers fourteen billion years of Earth's development. From the Big Bang to our planet's origin to land mass formation to the appearance of life, Brown and scientific consultant Perfit provide an astonishingly comprehensive overview and manage to humanize it with witty asides from the woodchuck and worm who serve as surrogate teacher and student, as well as quick visits with important historical scientists." -- Booklist , starred review ".

This is a worthy work of graphic nonfiction for earth science units." -School Library Journal "The graphic format, light tone, and amusing repartee keep up the pace over the course of an impressive number of geology topics."-- Horn Book.