Grade 3

From a wildlife rehabilitator who cared for a hawk when its wing was broken to the team of workers who rescued hundreds of pelicans covered in thick, sticky oil after an oil rig exploded in… More →

Two sections of Earth’s crust meet to form the Great Rift Valley in the middle of Ethiopia. Bordering the valley are some of Africa’s most expansive highland areas, lending Ethiopia the… 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 →

A mother pink river dolphin gives birth to its baby in the water. So begins the life of a little pink river dolphin calf. In this coming-of-age introduction to these river mammals, readers… 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 →

When Tony Romo joined the Dallas Cowboys in 2003, few people thought he'd become a superstar. During his first three years, he was stuck being a backup quarterback, sitting on the sidelines… More →

Killer bees have the mob mentality. They attack in large groups and refuse to let up without a fight. A group of killer bees can remain wound up for up to 24 hours! Learn why you should never More →

With fossils as their only clues, scientists have created an image of life millions of years ago. Try your hand at a scene in the world of the dinosaurs with the help of this how-to-draw… More →

Could a spirit of the dead really come back to haunt the living? If tales of ghosts are just fictional stories, why do so many people report seeing these supernatural beings? What would it be 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 →

With a flight deck longer than three football fields, the Nimitz aircraft carrier is the largest warship at sea. The 6,000 crew members and 80 aircraft onboard make each ship a military hub… 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 →