Explains how birds fly, discusses the operation and exploits of flying machines, both ancient and modern, and speculates about flight technology of the future.
Explores the field of physics, focusing on motion, light, sound, electricity, and magnetism. Includes color photographs, hands-on activities, and a glossary of terms.
Explores the field of biology, focusing on animals, plants, and the human body. Includes color photographs, five hands-on activities, and a glossary of terms.
Answers children's questions about flying on an airplane. Discusses what to pack, security, food and bathrooms, and take-off and landing procedures. Includes color photographs, a picture glossary, and sources of more information.
Presents an overview of human reproduction, with information about female and male reproductive organs, the reproductive process from conception to birth, and development from young child to adult.
Provides information about lasers, explaining what they are and how they work, and looking at how lasers are used in medicine, industry, the military, and other areas.
Discusses the life and discoveries of Galileo, the sixteenth- and seventeenth-century mathematician, physicist, and astronomer who challenged ideas more than a thousand years old and changed the course of science.
