Leon Gray

"This handy guide to search engines allows readers to learn the tricks to using these Internet-indexing services to their maximum potential. With an informative history of the development of search engines, this book teaches readers how this essential tool for the Web has advanced in its technology for categorizing websites and then pulling them up for users at the click of a search button. From an electronic "spider" that crawls the World Wide Web...

"With the continued growth of social networking as a pervasive presence in our day-to-day lives, the need is greater than ever for a guide for young readers that helps them understand their engagement with this key medium of online communication. This book breaks down the basics of social media, its benefits, and its dangers for Internet users today. By explaining the concept of networking-both on and offline-readers will learn the importance of social...

How big are trumpeter swans? With their wings stretched out, they are about as long as an 8-foot (2.4-m) rowboat! These large waterbirds live in North America and make their homes near lakes and ponds. Because of their huge size, trumpeter swans can fight off almost any predator. Get too close to a swan, and you'll hear the loud honking sound that makes it clear how this big bird got its name. In Trumpeter Swan: The World's Largest Waterbird, eye-popping...

How large is the world's biggest bunny? A Flemish giant rabbit weighs 20 pounds (9 kg)--as much as two cats. The supersized rabbits were first raised in a region called Flanders, which is now part of Belgium, more than 150 years ago. Today, they are kept as pets all over the world. Even though they are extremely large, these big bunnies love to cuddle with their owners--and sometimes even with the family dog! In Flemish Giant Rabbit: The World's Biggest...

The British army swelled in size at the beginning of World War I. But many of these new recruits suffered from malnutrition and lacked the physical strength to serve on the front line. Doctors developed healthy diets and workouts for the soldiers and, within months, the army was ready to fight. Biology has always been an important part of war. Doctors use biology to keep troops healthy by treating wounds and effects of trauma. Biologists have developed...

Provides a basic overview of the history, geography, climate, and culture of Iran.

Discusses zinc and where it can be found, how it was discovered, its special characteristics, and their importance.