Grade 7

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 →

Iran is an ancient country that used to be called Persia. The Persians were one of the oldest civilizations on Earth, and Persian culture has a strong presence in Iranian culture today. In… 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 →

Indy cars are open wheel race cars that are used in the Indy Racing League (IRL). The cars speed along tracks with straight stretches and sharp turns. Safety is a large concern, as Indy car… More →

The first shapes found in crop fields were circles. Since then, people have discovered more complex designs. Where do these designs come from? Are they messages from alien visitors, or are… More →

The United States Army uses variations of the UH-60 Black Hawk to perform a wide variety of missions. The Black Hawk has been the primary helicopter of the Army for over 30 years. This book… More →

Costa Rica, which means “Rich Coast,” is aptly named. Its long coastlines, bordering the Caribbean Sea to the east and the Pacific Ocean to the west, have some of the most diverse ecosystems… More →

This ancient country is considered the birthplace of Western civilization. Tourists can walk on the grounds of the first Olympic Games, see the mythical Mount Olympus, and visit the Acropolis More →

Did you know that Iraq was home to the oldest known human civilization on Earth? This area used to be known as Mesopotamia, and many different ancient peoples lived there. Readers will learn… 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 have raced stock cars for almost a century. The technology has changed, but the excitement of the races has remained the same. This title explains the history of stock cars, what’s… More →

Famous for the snowy peaks of the Swiss Alps, Switzerland is a popular destination for skiing and snowboarding enthusiasts all over the world. Swiss alpine culture is also known for a long… More →