Sinkholes

Packed with informative charts, diagrams, maps, and sidebars, this series facilitates learning and encourages higherlevel thinking. Earth Science is an informative and visually appealing series that will inspire a new understanding of geology and our world. Earth Science is a series of AV2 media enhanced books. A unique book code printed on page 2 unlocks multimedia content. These books come alive with video, audio, weblinks, slide shows, activities, handson experiments, and much more.