Nitrogen is a common element found as a gas in the air we breathe as well as in other forms in water and soil. Nitrogen is essential for all life on Earth. This informative book explains how… More →
Grade 7 - 9
590 records found. Displaying 481 - 492.
Theodore Weld was an early agitator for abolition. This book describes how Weld successfully forced the issue of slavery into the forefront of people's consciousness through speeches and… More →
Learn how the European Renaissance came to be! See those most notably involved in this fascinating era. Take a look inside a typical Renaissance home. Follow along as great strides were made… More →
The Rhine River begins in the Swiss Alps and flows through central Europe before reaching the Netherlands, where it empties into the North Sea. This engaging book highlights this major… More →
The history of human activity in the Rocky Mountain range is as colorful as its scenic natural wonders. It has been witness to the decimation of Native peoples, the westward expansion of… More →
This exciting graphic novel recounts three fascinating stories of covert, or secret, operations during World War… • Jan Kubis and Josef Gabcik, Operation Anthropoid, May 1942 - The plan to More →
Astronauts and cosmonauts were the heroes of a 20th Century battle without weapons - the race for global dominance in space. The Space Race explores how the quest to put "a man on the moon"… More →
The St. Lawrence River forms part of the boundary between Canada and the United States and connects the Great Lakes with the Atlantic Ocean. This informative book follows this important… More →
The Tigris and Euphrates rivers surround a region once known as Mesopotamia, the "cradle" of ancient civilizations that included Sumer, Babylonia, and Assyria. This fascinating book follows… More →
In this interesting title, readers learn about the process of manufacturing toys and the materials that are used. Environmental issues and working conditions are revealed, shedding new light… More →
In the 1800s, the Underground Railroad was a system of secret routes and safe places to hide for black slaves trying to escape to freedom. This astonishing book details the evidence that led… More →
When war was declared in Europe in 1914, Americans were divided about becoming involved. President Wilson vowed to keep the United States neutral and tried to influence each side in the war… More →