Catherine Chambers

Discusses natural disasters, such as tornadoes, hurricanes, volcanoes, floods and droughts, and how scientists use technology to try to predict them.

Describes how thunderstorms are formed; the lightning, thunder, winds, and rains that are part of them; and the impact of these storms on plants, animals, and humans.

Introduces what a blizzard is, and how some humans, plants, and animals have adapted to living in places where these fierce snowstorms are common.

Describes how hurricanes are formed, how they are measured, the harmful and beneficial effects of these storms, and their impact on humans, animals, and plants.

Looks at the weather phenomena known as the big freeze, explaining what big freezes are, where and why they occur, and what conditions are like during a big freeze, and discusses how people prepare for and cope with abnormally frigid conditions.

Explores the world's rivers, discussing how they were formed, what organisms live there, and how they are used by humans.

Explores the world's deserts, discussing how they were formed, what organisms live there, and how they are used by humans.

Seth and Abrinet travel back to ancient Rome when gladiators entertained the crowd.