Explores the history of the stone tombs near Dargavs in North Ossetia, Russia, including theories on how and why they were built, possibly by a people known as Alans, and what remains to be discovered
It takes a special person to work in the extreme environment of Antarctica, but many scientists, engineers, doctors, and technicians do. A vivid picture of life in the freezing conditions of the South
Describes how living things adapt and change in order to survive, discussing adaptation to different habitats, how the organisms in a habitat adapt to interact with each other, and adapting to changin
Describes the life cycle of various plants and animals, providing anecdotes about survival mechanisms by such animals as salmon, the Monarch butterfly, and the sea turtle.
Discusses everyday life in the American colonies, including why people came to the colonies, the kinds of food they ate, and what colonial governments were like.
A series that will reveal many surprising facts to middle readers about the United States government and its workings includes fascinating sidebars and age-appropriate informational fact boxes; histor
Chronicles and presents facts about life during the middle Jurassic period, depicting the daily activities of dinosaurs from that time, including Cetiosaurus, Ozraptor, and Megalosaurus.
Chronicles and presents facts about life during the upper Triassic period, depicting the daily activities of dinosaurs from that time, including Coelophysis, Eoraptor, and Isanosaurus.
Presents information about the brutal, incompetent, corrupt, bigoted, and otherwise unpleasant reigns of ten terrible historic rulers, from the ancient world to the nineteenth century.
Presents the timeline of the Vietnam War, including the causes of the conflict, the United States' entry into the war, the life of soldiers on both sides, the home front, and the end of the long war.