Challoner, Jack

Describes dangerous and destructive weather conditions around the world, such as thunderstorms, tornadoes, hurricanes, lightning, hail, and drought with photographs, historical background, and legends.

Text accompanied by photographic illustrations survey various sources of energy and the ways in which they have been harnessed.

Describes dangerous and destructive weather conditions around the world, such as thunderstorms, tornadoes, hurricanes, lightning, hail, and drought with photographs, historical background, and legends.

An introduction to the concept of size, describing how sizes are measured, comparing sizes of such things as plants, animals, and buildings, and providing related activities.

Simple activities introduce light in relation to day and night, the sun and the stars, shadows, black and white, and more.

Simple activities introduce the concepts of hot and cold in relation to melting and freezing, temperature, deserts and polar areas, and more.

Experiments and activities introduce the properties of batteries and magnets and the principles of electricity and magnetism.