Explains how the human body works, covering the functional aspects of skin, teeth, eyes, ears, stomachs, and more; and discussing why people sneeze, how bodies move, and why people grow.
Photographs, illustrations, and simple text introduce young readers to how cars are designed and built, how they are tested, and how all the parts of a car are put together.
Text, labels, cutaway artwork, and diagrams provide an overview of how technology is used at a fire station, discussing alarm calls, a firefighter's suit, fire engines, special incidents, extreme heat, and other related topics.
Discusses the legal debate of same-sex marriage, including the history of the gay rights movement, the arguments both in support and opposition of same-sex marriage, and how same-sex marriage is treated around the world.
Answers questions children may have about how the brain works, and explains how to keep the brain alert and healthy through proper sleep, diet, exercise, and stress reduction.
Introduces the concept of animal extinction, examines the lives and habitats of mountain gorillas, discusses their status in the early twenty-first century, and looks at what is being done to save the species. Includes resources for more information.
Introduces the concept of animal extinction, examines the lives and habitats of blue whales, discusses their status in the early twenty-first century, and looks at what is being done to save the species. Includes resources for more information.
Examines the various animals that inhabit the world's deserts and discusses the food chain and what happens to a food web when a food chain breaks down as well as methods that can be taken to protect the desert food chain.
