Gordon, Maria

Simple text and photographs introduce young readers to volcanoes, discussing what volcanoes are, how they erupt, and how volcanoes form.

An introduction to the materials in the world around us, with suggestions for activities for exploring their properties.

Includes bibliographical references and index.

Presents a variety of facts about light, and suggests simple activities that help to show what light is and how it works.

Fun projects explain what floats and what sinks and why.

Describes the physical characteristics of rocks and soils and explains how they are formed.