Readers will learn how to measure length, area, volume, and angles through the exploration of the Great Pyramid of Giza. Includes colorful photographs and illustrations of the exterior of the…

Build early literacy skills, and develop oral and written language skills in emerging Spanish readers with this leveled fiction reader.

This intriguing narrative provides an overview of esophageal cancers. The esophagus is the muscular tube that carries food and liquid from the mouth to the stomach. The two main types…

Many of the seals and sea lions that people are familiar with are appealing, cute animals, but no one is likely to use those words to describe male elephant seals…

Krypton (Kr), a noble gas, is sometimes known as the hidden gas because it was so hard to isolate from the air. Scientists, however, have discovered that krypton is useful…

In AD 79, the residents of the booming Roman city of Pompeii were shocked when a nearby mountain exploded, releasing superhot ash, rock, and gas on the surrounding areas. What…

This book analyzes critical topics that include the importance of conservation and the immediate and long-term threats posed to our air, forests, oceans, and even the soil beneath our feet…