Grade 4

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 →

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 →

Thousands of people around the world have claimed to have been abducted by aliens. Is there truth to these reports, or did the people make them up in order to get into the headlines? This… 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 →

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 →

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 →

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 →

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 →

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 →