Restless earth

Describes why volcanoes and earthquakes occur, the chaos they cause, how they help to form mountains, valleys, and islands, and ways in which they are useful to people.

Text and color photos and diagrams present an overview of rivers, covering their sources, their flow, floods, waterfalls, river wildlife, and other related topics.

Text and color photos and diagrams present an overview of coasts and islands, covering ocean currents, changing rock faces, plants and wildlife, coral, the formation of beaches and islands, and other related topics.

Provides a brief introduction to mountains, discussing how they are created, why they are constantly changing, and how they provide a home to plants, animals, and humans.

Presents a discussion of different kinds of rocks and minerals, examining how they are made and how to identify them.

Discusses the water cycle, which consists of rivers, oceans, lakes, and streams as it erodes rock, sculpts mountains and coastlines, affects climate, and overtakes human land development.

Explains how volcanoes are created under the oceans, how mountains form, and how land changes shape through erosion and weathering.

Explores how scientists study the inner workings of the earth using such tools as global positioning, seismology, and computer modeling.

An exploration of fossils that discusses the work of paleontologists, covering the techniques they use and what type of information they learn from studying a fossil; and examines fossil links that reveal facts about the development of Homo sapiens.

An investigation of earthquakes and volcanoes that examines what they are and why they occur; discusses tsunamis, how scientists study them, and the damage they can cause; and includes photographs and illustrations.