Grade 4

Just when you thought you'd seen every kind of animal, along comes a series featuring creatures that seem too unbelievable to be real--Animals with Super Powers. From eels that can kill a… More →

The enormous ankylosaurus looked intimidating. But this dinosaur ate only plants! Tough armor protected the ankylosaurus from bites. When attacked, it swung its club tail to knock out foes!… More →

Many sailors once believed that women were bad luck on ships. But Anne Bonny quickly proved them wrong! This fearless pirate held her own during raids and battles, wielding a pistol and… More →

Antarctica is one of the coldest and windiest places on Earth. Find out all about the animals and plants that live there, as well as the brave people that have explored the icy continent.… More →

In Antibiotics, readers will learn about the science behind the discovery and development of antibiotic medicine and how it helps us fight infections today. Vibrant, full-color photos and… More →

The apatosaurus grew up to 75 feet long! These enormous dinosaurs stomped the earth 160 million years ago, but paleontologists still study them today! This high-interest text for young… More →

In the murky rivers and tangled jungles of the Amazon rain forest live some of the world's most skillful and fearsome predators. These powerful hunters are at the top of the food chain. They… More →

Apple is one of the most famous brands in the world. But it didn't start out that way. This title introduces young readers to the iconic computer brand through engaging, fact-filled text,… More →

Though Apple was founded on April Fools' Day, this company doesn't kid around. From the start, Apple has delivered top-notch technology, including the iPod, iPad, MacBook Pro, and more. This… More →

Arachnids can be found in almost every part of the world. They are incredible creatures that range in size from too small to see to as big as a dinner plate. Find out about what makes an… More →

In the Amazon River lives one of the largest freshwater fish on Earth--the arapaima. This huge river hunter can grow up to 10 feet long and weigh 400 pounds. In its watery home, the arapaima… More →

From classic Pong to modern-day Killer Queen, arcade games have been around for decades. But arcade cabinets are more than just quarter-eaters. They are also some of the world's most popular… More →