Grade 4

When the United States Army needs to attack an enemy base, Apache helicopters are called into action. These fast, maneuverable vehicles are equipped with advanced technology to deal with any… More →

The main gun on an M109A6 Paladin can fire up to four rounds every minute. Each round can travel up to 15 miles (24 kilometers). The Paladin has been the backbone of United States Army… More →

Japanese comics, called manga, have influenced cartoon artists and animators all over the world. Simple lines and exaggerated features mark its distinctive style, making it easy to replicate… More →

After decades of war, South Sudan became an independent country in 2011. Though its people face struggles as they build their new nation, they do have reason for national pride. Their country More →

Predator drones can be used for reconnaissance missions or targeted attacks. Pilots control the drones from remote locations, keeping them safe from enemy fire. These unmanned aerial vehicles More →

Dogs may be man's best friends. However, you shouldn't try to befriend dingoes. Once these wild dogs lose their fear of humans, they can become savage attackers. They will snarl and bite to… More →

Delta Force is the most elite force in the United States Army. It specializes in covert operations, often undercover deep in enemy territory. Only the best in the Army can serve in Delta… More →

The Green Berets are a Special Forces unit of the United States Army. They carry out a variety of missions, including search-and-rescue, counterterrorism, and strategic assaults on enemy… More →

Trespassing in mountain lion habitat is a dangerous idea. Mountain lions do not share their territory, and they will not hesitate to stalk, pounce, and bite to defend it. Read about people… More →

Tigers retract their claws but never their fury. Surprise them when they are eating or sleeping, and you'll likely become the meal and be put to sleep permanently! When it comes to the orange More →

It’s rambling in Britain and bushwalking in Australia. New Zealanders call it tramping and the Dutch go trekking. In the United States, we know it as hiking. Whatever you call it, this… More →

The United States Air Force uses HH-60 Pave Hawks to deploy Special Forces and to perform search-and-rescue missions. Engaging photos and design highlight how the speed and technology of… More →