Describes the sport of bicycle stunt riding, how to purchase equipment, practice stunts, ride safely, and enter competitions.

Introduces the sport of snowboarding, with advice for beginners on equipment, techniques, competition, and safety.

A biography of Euclid, the founding father of geometry and his most famous work, The elements.

Discusses the anatomy and functioning of the lungs, how we breathe, and how oxygen is brought to the cells of the body.

Describes the sport of bike trekking, the equipment and gear needed, the techniques of biking, and the safety precautions.

Surveys the life of Swiss/German immigrant John Sutter, on whose land gold was discovered in the mid-nineteenth century, spurring the California gold rush and westward expansion.

Discusses the pros and cons of testing products intended for human use on animals, as well as the legal and ethical issues involved.

"Presents scientific discoveries about the atmosphere, composition, size, moons, and strange weather systems of this outer planet known as a gaseous giant." --

Describes a dangerous new strain of E. coli, called O157:H7, which appeared in 1982, how it is spread via contaminated meat, milk, vegetables, water, or person to person, the symptoms of the disease, and the methods used to handle outbreaks.

Examines the history behind Israel's mid-twentieth century battle for independence amid the surrounding Arab nations, plus biographical notes on important figures and a look at the effects of this war.