Grade 4

When there is danger in shallow water, Littoral Combat Ships are called into action. These ships can go in water too shallow for other ships of the United States Navy. Armed with high-tech… More →

Afghanistan borders seven different countries and is a connection point for East, South, West, and Central Asia. It has long been a center of trade and culture, with many different… More →

The sport of cheerleading demands strength, flexibility, and spirit. Cheerleaders dance, tumble, and even fly through the air to encourage sports teams and excite crowds. This book will teach More →

Pakistan became a country in 1947 after the Muslim people of India fought for the creation of an independent state. Now, Pakistan is the second most populated Muslim-majority country in the… More →

Travel to Kenya and see if you can spot giraffes, elephants, lions and other African animals! Dinosaur bones and giant crocodile fossils discovered in Kenya reveal that the country has been… More →

For thousands of years, people have been fishing in lakes, rivers, and the ocean. Ancient peoples used nets, spears, and their bare hands to catch fish for food. Today, many people fish just… More →

With huge rear wheels, flip-up bodies, and powerful engines, funny cars thrill fans across the country. Funny car engines can have over forty times the horsepower of a normal production… More →

People train in the martial art of karate to strengthen their bodies and minds. Many can kick and punch with enough force to break wooden boards in half! Young readers will discover how… More →

Named after two soldiers who won the Medal of Honor, the Stryker is an armored combat vehicle that serves many roles in the United States Army. Strykers can carry troops, guns, and missiles.… More →

In the 1950s, Californians invented skateboarding so they could surf on land. Roller skate wheels were attached to flat boards. Young readers will learn all about the sport of skateboarding,… More →

Brazil is the largest country in South America and the fifth largest and most populated country in the world. The Amazon Rainforest in Brazil has the greatest biological diversity of any… More →

Goldfish are the most common type of pet fish. Though having a reputation as simple pets, fish do require a fair amount of attention. When you learn what your fish needs in its tank, how to… More →