New true book

Briefly describes mountains, and the plants, animals, and people that live in mountainous areas.

Describes the climate, geography, exploration, and plant and animal life of the continent so cold that no one lives there.

Describes the history, language, social classes, customs, culture, religion, and warfare of the ancient Central American civilization of the Mayas.

Discusses the habits and behavior of caribou and reindeer as well as their importance to people.

Instructions for a variety of simple experiments examining the reflex, instinctive, and conditioned behavior of such animals as mealworms, fruit flies, and goldfish.

Discusses the plant and animal life of prairies and grasslands throughout the world.

A brief introduction to chemistry, discussing atoms, molecules, the periodic chart, chemical changes, and states of a matter. Includes simple experiments.

A discussion of the properties of electricity, with related experiments, and an introduction to different kinds of batteries.