Explores the many uses of wood, from paper and cloth to chemicals to works of art, discussing how wood is processed for these different purposes and how we can help protect this valuable resource.
Discusses various natural and artificial fibers that are used to produce cloth, and examines processes used to transform those fibers into clothing, household items, and technological devices.
Discusses how metals are created, extracted, and worked and looks at the uses of metal in the past, present, and future, including artificially produced metal and metal from outer space.
Discusses the unusual nature of glass, how it is made, and the many uses to which it has been put, from fine art to industrial applications, throughout history.
Suggests experiments and projects illustrating basic principles and phenomena of meteorology, including precipitation, temperature, wind, and seasonal changes.
A photo essay about the range of plants and animals found in fresh water throughout the year, examining the living conditions and survival mechanisms of creatures dwelling at the edge of the water, on its surface, or under the mud.
An introduction to the digestive system, discussing each stage of digestion, the organs which aid in the digestive process, and the assimilation of nutrients into the body's structure.
