Includes bibliographical references (page 31) and index.
Contents:
Underground wonders -- Wearing down the Earth -- Always changing -- Son Doong cave -- Life underground.
Summary:
Explores the fascinating world of caves. Readers will learn how caves form and how they change over time, as well as the plants and animals that make caves their home.
This resource is supported by the Institute of Museum and Library Services under the provisions of the Library Services and Technology Act as administered by State Library of Iowa.