Describes how a volcano is formed, the different types of volcanoes, where the most active volcanoes are found, and what happens when a volcano erupts.

From somersaults and backflips on the floor to aerial moves, mounts, and dismounts on bars and beams, kids will learn all about gymnastics history, events, and competitions.

"Teeth, tails, and scales--oh my! Newly independent readers will be transported back to a time when bugs were big and monsters ruled the deep. Each page of this dazzling Level 2 reader is packed with jaw-dropping facts on the fiercest predators of the ancient oceans. Learn about Megalodon, the largest shark ever to have lived; Jaekelopterus, a human-size scorpion; Helicoprion, a fish whose teeth were in the shape of a circular saw; and more! Level...

Collects facts about cheetahs, describing their physical characteristics, behaviors, and habitat; and includes photographs.

Introduces Vikings, describing their history, culture, mythology, and warfare.

Describe el ciclo de vida y el comportamiento de los tiburones.

Provides facts about wolves, such as their habitat, packs, and feeding habits. Proporciona datos sobre los lobos, como su hábitat, paquetes, y los hábitos de alimentación.

Meet civil rights leaders who were inspiring individuals as well as leaders in their fields: inventor, activist, orator, scientist. Learn about their childhoods, achievements, and contributions that made the world a better place. Biographies feature fascinating facts and archival photography that vividly illustrate the amazing lives of each hero.