Grade 7

Mississippi is named for the great river that forms its western border and sustains the state in many ways. Its floodplain is covered in thick, fertile soil that supports the growth of crops. More →

Transylvania was once home to Vlad III, a ruler whose murderous reputation left thousands dead by impalement. The weight of his cruelty still rests in the dark forests and icy castle chambers More →

From the Great Plains to the Black Hills, South Dakota is a state of varied landscapes. It is known for its natural and human-made landmarks, such as the Badlands and Mount Rushmore. Kids… More →

Sunshine, solid ground, and fresh air. You don't find these things in underground coal mines. Miners must be prepared to work in pitch-black darkness and survive explosions, cave-ins, and the More →

Black mambas give snakes a bad name. They are aggressive and have a bite that is usually a death sentence. Their venom is 10 to 15 times stronger than a rattlesnake's! Tread carefully as you… More →

Considered the most capable multi-role fighter, the F-16 Fighting Falcon can weather any storm. The streamlined aircraft will fly more than 500 miles to meet the enemy, locate targets under… More →

Getting rammed by a charging bull is not that different from being hit by a car. Who would sign up for such a thing? Well, rodeo clowns. They battle bulls to keep cowboys safe. Learn about… More →

Sometimes actors don't have the skills they need for a movie scene. This is where stunt performers jump in, sometimes literally. These daredevils jump out of moving cars, off high cliffs, and More →

For soldiers on the ground, the Humvee is a welcome sight. This multi-purpose vehicle serves as a weapons carrier, ambulance, troop shelter, and more. It takes a beating from harsh terrain,… More →

Don't say you weren't warned. Black widows have red markings that let you know they are dangerous. Bother a black widow and experience the effects of its potent poison. Get caught up in… More →

For missions that need immediate attention, the B-2 stealth bomber takes to the runway. This flying wing can reach any target in the world in a matter of hours. The bomber’s flat frame is… More →

Radar is of little use to the enemy when the F-35 Lightning II is in the air. From the shape of the aircraft to the paint that coats it, the F-35 is loaded with stealth features that make it… More →