Grade 4

As a country of 17,000 islands, Indonesia is truly unique. It's fitting that many rare animals make their homes in Indonesia. The venomous Komodo dragon, one of the deadliest animals in the… More →

You may think you're safe from a shark attack if you stay out of the ocean...but you're not! There's a shark that can lurk in rivers as well as the sea; a shark known for beginning its attack More →

Lumberjacks use chainsaws, helicopters, and heavy machinery to cut down trees and bring them to the mill. When a massive tree comes down, everyone is at risk. Readers will learn about the… More →

United States Navy SEALs are trained to fight at sea, in the air, and on land. It takes years of training to become a SEAL, and most who try to become SEALs fall short. It is this rigorous… More →

The earliest canoes were merely hollowed-out tree trunks. These gave way to birch bark canoes and, later on, wood-and-canvas canoes. Today there are racing canoes, inflatable canoes, and even More →

Named after General Creighton Abrams, the Abrams tank is the main battle tank of the United States Army. Its powerful main gun, composite armor, and large engine make it one of the most… More →

The bomb squad technician must quickly and carefully defuse the bomb before the timer reaches zero and the bomb explodes. If the technician fails, the building will blow up and people will be More →

The loyal Lab, the gentle Beagle, the playful Pug, and the spirited Dalmatian; dogs vary as much in personality as they do in looks. See how easy it is to bring out the individuality of our… More →

When a wildfire breaks out in a remote area of the wilderness, smoke jumpers are called to action. As their plane nears the fire, they leap out and parachute into the forest to fight the… 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 →

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 →