Explores how rivers change the landscape as they flow from mountain springs and wind their way down to the sea; how rivers provide a home for plants and animals; and how humans use rivers.

This book examines the dramatic and destructive effects of storms, tornadoes, hurricanes, blizzards, droughts, and floods and looks at what lies behind these catastrophic events.

"Explains essential facts about light and dark, including natural and artificial light, color, and reflection. Includes experiments"--Provided by publisher.

This book discusses how and why landslides and avalanches occur and what can be done to prevent them or lessen their effect.

Explains where different woods come from, how they are harvested, and what they are used for.

Explains, in simple text and illustrations, the various parts of a seed and how a seed grows into a plant. Includes instructions for simple experiments and projects.

Presents an introduction to birds, describing basic physical characteristics, different types, including water birds, seabirds, woodland birds, ducks, geese, swans, and birds of prey, and the dangers that birds face from pollution and loss of habitat.

Demonstrates what balance is and how it works through a series of simple experiments.

Provides simple instructions for creating a variety of visual tricks.

This book explains what rain is and discusses how rain affects our everyday lives.