Ask Isaac Asimov?

Discusses how modern whale hunting methods have caused many species of whales to become endangered and what can be done to help protect the whales.

Briefly describes how our eyes work, various vision problems, and how glasses can help us see better.

Briefly describes several kinds of ships and the forces that cause them to float or sink.

Discusses how litter damages our environment and how to dispose of it properly.

Describes the ozone layer and its ongoing destruction and explains what can be done to help solve the problem.

Briefly describes how toilets are used to get rid of waste and how sewage is treated.

Explains, in simple terms, the reasons for skin color, how it is determined by heredity, and how various environmental factors affect it.

A brief discussion of sleep, why we need it, what happens when we sleep, and sleep disorders.

Describes how the seasons affect people and other living things.

A simple discussion of the causes and effects of air pollution and some ways to help prevent it.

Discusses the nature and causes of acid rain, its harmful effects, and possible ways to prevent it.

Describes the structure and function of our teeth and the importance of taking care of them.

Explains the nature of meteors or "shooting stars" and how they are different from real stars.

Describes the characteristics and value of tropical rain forests, why they are disappearing, and how to save them.

Briefly examines how we get rid of the things we throw away, describing some of the problems of waste disposal and some of the solutions.

Examines the problem of global warming, its possible causes, and ways to prevent the situation from getting worse.

Discusses why certain animals have become endangered and what can be done to help them from becoming extinct.

Briefly describes how the forces of lift and thrust are used to overcome gravity and resistance to enable airplanes to fly.

Provides a simple explanation of the technology involved in transmitting and receiving television signals.

Discusses the causes and damaging effects of oil spills and ways to protect the land and sea from oil pollution.

Describes what happens when the body is cut or bruised, how the body reacts to these injuries, and steps to help the healing process.