Pollution is seriously damaging our planet. Human activity and waste are harming the environment by polluting the air, water, and land. Discover the facts about where pollution comes from,… More →

Peter and Vicki have just moved into their new apartment in Chicago, Illinois. With time to kill before the moving truck arrives, they visit nearby Lincoln Park Zoo. Before long, strange… More →

This captivating title examines the eruption of Mt. Vesuvius that destroyed Pompeii in 79 A.D. and what the remnants of this buried city can teach us today. More →

Famous for his search for the legendary Fountain of Youth, Spanish conquistador Ponce de León is credited with the discovery of Florida in 1513 as well as making Puerto Rico and the Gulf… More →

Learn about population in countries around the world, and how changes in the number, age, and gender of people living in a place affect life there. Explore different settlements, from ancient More →

Why do people migrate to and settle in the places they do? Fascinating examples in history help explain how the earliest human settlements were situated close to fertile ground and rivers for More →

Grab your pom-poms and a megaphone! We're about to learn why cheerleading ranks among the...TOP HIGH SCHOOL SPORTS. More →

Grab your pom-poms and a megaphone! We're about to learn why cheerleading ranks among the...TOP HIGH SCHOOL SPORTS. Features include activities for further learning, author biography,… More →

Cheerleading is a fast-growing sport that's based on teamwork, gymnastics skills, daring stunts, thrilling dances, and - of course - crowd-rousing cheers. With action-packed color photos and… More →

With its striking looks, superb engineering, and unparalleled performance, Porsche is one of the world's most revered automobiles. This dynamic title tells the story behind this legendary… More →