Walker, Niki

Presents an introduction the different skills and often difficult lives of women on the farm, in business, and on the plantation as the owner's wife or as a slave in colonial America.

Offers a brief introduction to the history, techniques, equipment, and rules of badminton, including the differences between singles and doubles play.

Introduces various methods of animal locomotion, discussing quadrupedal gaits, flight, aquatic movement, and more unconventional variations.

This book describes the characteristics of the Sun, covering such topics as its creation and physical make-up as well as its effects on the Earth.

This book describes the requirements, training, tasks and duties of astronauts and covers such topics as operating a spacecraft and living in space.

Identifies what is and is not a dinosaur, discusses the physiology and behavior of various types, including stegosaurs, ankylosaurs, and ceratopsians, and introduces theories about their extinction.

Offers a brief introduction to the history, techniques, equipment, and rules of bowling, both five- and ten-pin.

Introduces young readers to the benefits of using hydrogen as a source of energy and the technologies that convert hydrogen to useable energy.

Describes the various ways to conserve energy and develop alternative energy sources such as solar and wind power.

Introduces young readers to the benefits of using wind power to generate energy; and describes how electricity is made from the wind, the history of wind power, and wind farms and turbines.