Presents an introduction to pyramids, in simple text with illustrations, describing how they were made, and who made them, including those at Giza in Egypt, India, and South America.
Studies a number of machines and inventions from ancient times to the present including fire and the wheel as well as things such as the steam engine, power looms, locomotives and diesels, automobiles and airplanes, and spacecraft.
Presents photo-illustrated facts on animals and plants around the world, arranged by habitat, and features quiz questions on page bottoms and hands-on activity suggestions.
Provides photographs and information about rocks and minerals, discussing how rocks form, the different types of rocks, rock erosion and movement, metals, and other related topics. Includes a glossary.
