Grade 4

Saltwater crocodiles wait in the water, silently and motionless, for their prey to come near. Then they strike, using their powerful jaws to grab and rip apart prey! This title will teach… 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 →

First mentioned in writings over 2,000 years ago, the lost city of Atlantis continues to puzzle people today. Some people doubt that it ever existed. Others claim that it was real, and that… More →

A medium-lift assault helicopter, CH-46 Sea Knights are used to deliver heavily armed troops into battle. They are also used on several other missions. Readers will learn about these large… 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 →

Motorcycle drag racing is becoming a very popular motor sport. Amateur racers use their street bikes to drag race, while professionals use drag bikes that can reach 200 miles per hour.… More →

Denmark has consistently been ranked as one of the happiest countries in the world. It has a high standard of living, an impressive literacy rate, and an industrious economy. In this title,… More →

Used by the United States Army Special Forces, AH-6 Little Birds have a reputation for their ability to quickly attack a target and then get away before the enemy can react. They have proven… 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 →

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 →