Caves may seem like dark and scary places--and they can be--but there's much more to know about these amazing formations. This low-ATOS volume introduces early readers to these rocky holes in the earth. Accessible text and colorful photographs help them visualize these places and develop a deeper understanding what they are like, where they can be found, and how they form. Whether an aspiring geologist or simply a curious individual, readers will love this introduction to elementary science concepts.