Mundo maravilloso

Presents information on how the ear works, on the hearing ability of various mammals, birds, and insects, and how sounds travel. Includes transparent overlays.

Illustrates the different kinds of vegetables. Includes transparent overlays.

Laminated pages with transparent overlays introduce the sense of sight.

Introduces weather, including spring showers, snow, fog, and rainbows. Features transparent pages.

Laminated pages and transparent overlays describe the Amazon jungle and the plants and animals that live in it.

Discusses the wildlife and plants found in rivers. Includes transparent pages.

Explains how apples and other fruits grow, their traditional uses, and their cultural significance on transparent pages.

Illustrations with transparent overlays and brief text present information about the history and lifestyle of Native Americans.

Colorful illustrations and many transparent pages help children learn about life underground as they watch a mole dig a tunnel, visit with a colony of ants, and watch as a kingfisher tunnels into the riverbed to lay her eggs.

Explains various types of airplanes and other flying machines, including gliders, passenger jets, helicopters, and hot-air balloons. Features transparent acetate overlays.