Explains the causes of changes in the weather, discussing such phenomena as sunshine, clouds, rain, snow, and storms and how they are observed and predicted.
Examines the variety of animals in the world, grouping them as mammals, birds, reptiles, amphibians, fish, insects, and those with soft bodies and shells.
Introduces the concept of hot and cold temperatures, how and why they occur, the effects of heat and cold, and heat as a source of energy, and has simple related activities.
Uses familiar objects to introduce the concepts of sound and hearing, suggests activities to prove or explore a point, and asks questions requiring further study.
Discusses the different aspects of time and how it is measured, including days and nights, years, calendars, and clocks. Provides suggestions for related activities.