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...

Presents information about the vehicles and equipment used to fight fires from the ground, sea, and sky.

Photographs and text explore the natural phenomenon of lightning.

An introduction to the physical characteristics, behavior, and life cycle of the killer whale.

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