Seymour Simon

With winds that can reach speeds of three hundred miles an hour and funnel clouds that can measure a mile in diameter, tornadoes leave enormous damage in their wake. Now Seymour Simon examines these twisting columns of air and destruction. Simon explains how tornadoes are formed, why and when they are most likely to occur, how scientists classify and track them -- and what to do if one touches down. Full-color photographs show this powerful phenomenon...

Describes the origins, characteristics, and future of the sun, planets, moons, asteroids, meteoroids, and comets.

This book describes the skeletal system and outlines the many important roles that bones play in the healthy functioning of the human body.

Describes the physical characteristics and behavior of various kinds of gorillas.

Explains, in simple terms, the characteristics of volcanoes and describes some famous eruptions and their aftermath.

Friendly and fascinating, dolphins are one of nature's most intelligent animals. Science writer Seymour Simon has teamed up with the Smithsonian Institution to give you an expert view of these clever, curious, and mischievous mammals in a full-color photographic introduction.

A study of the center of the solar system discusses its composition--from its thermonuclear core to its surface to the corona--as well as its processes and role as a source of energy.

Describes animals considered dangerous or unattractive.

Describes the physical characteristics, habits, and natural environment of various species of whales, and includes color photographs.

Describes various kinds of trucks and their functions, including a log truck, cement mixer truck, and sanitation truck.