Nuclear war became a reality when the United States dropped two nuclear bombs in Japan during World War II. Despite the devastating results, many countries still own nuclear weapons. This… More →
Grade 4
1364 records found. Displaying 661 - 672.
Dozens of ships and planes have vanished without a trace in the Bermuda Triangle. Are giant rogue waves the culprit? Or could it be something more otherworldly? This title explores the… More →
The flag goes down and the cars accelerate down the track. But what do race car drivers do when they arenХt racing? This high-interest title shows how drivers work with their race team, check More →
Driven by superheroes in Iron Man 3 and The Wolverine, the Audi R8 is an enviable car. This title digs into the features that transform this awesome vehicle into a supercar, with special… More →
China's famous terra-cotta army has at least 8,000 soldiers! More than 2,000 years ago, this army was created to protect the tomb of the ancient Chinese emperor Qin Shihuang. Today, the army… More →
The revelation of King Tutankhamun?s tomb brought fame and glory to its discoverers. But as unlucky occurrences hit the crew, people wondered if it brought something more sinister as well.… More →
A low roar rumbles through the forest. A Tyrannosaurus rex is on the move! What unlucky dinosaur will be its next meal? The ferocious T. rex is famous for its long, sharp teeth. But what… More →
Did you know Costa Rica is home to seven active volcanoes, a cloud forest, and beautiful beaches? But the most special thing about this tropical nation might be the people! All across Costa… More →
Special effects have come a long way over the past century! Computer-generated visual effects are now par for the course, bringing spectacular worlds to screens big and small. This title… More →
The oldest paintings in the Cave of Altamira are more than 20,000 years old! Created by early humans, the paintings now give scientists a glimpse into the lives of people long ago. This… More →
Viruses and bacteria are everywhere! They can mutate and move easily from one person to the next. Vaccines and other forms of prevention help fight these vicious pests, but pandemics have hit More →