While rocks seem like ordinary objects under our shoes, they're evidence of a cycle that's been repeating for billions of years on Earth. This beautifully designed book, beneficial to any elementary science library, highlights need-to-know information for young geologists, such as the three main groups of rocks and the rock cycle. Plentiful images displaying the different characteristics of rocks, fun fact boxes, and key vocabulary terms ensure that readers not only are provided with curricular content but also that they comprehend it and come to appreciate rocks for their contribution to our planet!