Important organs, body areas and systems described in straightforward language for grade school children. Presentation kept interesting by constant reference to puzzling, familiar phenomena—coughing, curly hair, dental cavities, blushing, broken bones, taste areas on the tongue, baldness, puberty, reproduction. Enlivened with simple experiments children can do.

103 projects demonstrate composition of objects, how substances are affected by various forms of energy—heat, light, sound, electricity, mechanical energy, etc. How a thermometer measures heat, how an electric bulb emits light, how shadows are formed, how to make a periscope, how to make a rainbow, etc.

General background information on language of chemistry, basic concepts, symbols, starting a home laboratory, etc. Over 40 experiments include making a crystal garden, manufacturing oxygen, making a miniature volcano, home soap, toothpaste, etc.

55 projects in electricity, magnetism, electronics; making a compass, wiring a simple electromagnet, obtaining electricity from a lemon, reactivating a dry cell, making a flashlight, constructing a Geiger counter.

Research and Discovery: Landmarks and Pioneers in American Science

This encyclopedia is an overview of the history of science in America from colonial times to the present. Organized alphabetically within scientific discipline, the set is divided into fourteen sections that include overview essays tracing the historical development of the specific discipline in a cultural and social context; A-to-Z entries on people, institutions, events, developments, and significant concepts; documents highlighting the development of the discipline; and a chronology detailing the historic milestones.