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...

Imagine exploring the most extreme parts of our amazing planet—trekking though the driest desert, climbing the snowiest mountaintops, and diving to the deepest regions of the ocean floor. Seymour Simon, the dean of children's science nonfiction, investigates Earth's biggest, smallest, deepest, and coldest environments, animals, plants, and most severe weather. These mind-bending facts and photographs invite readers on an exciting, and sometimes

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An introduction to the physical characteristics, behavior, and life cycle of different kinds of spiders.

Takes young explorers on an unforgettable tour of the red planet.

Photographs and brief text present different kinds of trains and their cars: passenger trains, mountain trains, freight trains, diesel locomotives, gondolas, hopper cars, tank cars, and more.

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

Discusses the history, physical characteristics, behavior, and various breeds of cats, and provides basic information on caring for one as a pet.

Describes the physical characteristics, habits, and natural environment of various species of big cats.

Text and photographs explore the physical characteristics, life forms, and fragility of the world's oceans.

Describes the nature of the sun, its origin, source of energy, layers, atmosphere, sunspots, and activity.