An introduction to plastic that explains how it was invented, traces its history, describes the many different kinds and uses of plastic, explores what plastics are made of, discusses the importance of recycling plastic, and examines the future of plastic.
An introduction to soap that explains how soap is made, what it can do, how it is used to demonstrate scientific concepts, how it has been made, used, and distributed throughout history, and how it may be used in the future.
An introduction to rubber that traces its history, explains how it is made, discusses its many uses, explores its impact on the environment, and describes the modern rubber market.
An introduction to water that explains what water is, describes the different forms of water, examines the water cycle, discusses the dangers of water pollution, and explores the importance of water.
Discusses the history of skyscrapers around the world, with photographs, illustrations, information on the first tall buildings, and various design and engineering considerations, and includes a timeline.
Discusses the history of salt, with photographs and illustrations, and explores the world's sources of salt, types of salt, salt's effects on the human body, salt rituals, and other topics; and includes a time line.
Discusses the history of oil, with photographs and illustrations, and explores the world's sources of oil, Greek fire, how an oil pump works, the problems with petroleum, and other related topics; and includes a time line.
An introduction to gravity with photographs and illustrations that explains what gravity is, how gravity affects the Earth and solar system, Albert Einstein's general theory of relativity, the effects of gravity on the human body, black holes and wormholes, and other related topics; and includes a timeline.
