Grade 5

Throughout time, scientists have made vaccines to prevent deadly illnesses. Even today, scientists are still studying diseases and working to make new and better vaccines. Explore how… More →

In this book, early fluent readers will learn about the history of Valentine's Day, including when, where, and who first celebrated it, its meaning, the traditions associated with it,… More →

Deep valleys and gorges cut across landscapes around the world. But how do they form? And how have we learned to harness power from the deep splits in the ground? Explore more about these… More →

Vampire bats are the world's smallest bats! They live off the blood of prey. Elf owls might be tiny, but they can snatch prey out of midair with their talons. In this book, these animals… More →

When Hurricane Katrina raced toward the Gulf of Mexico, the animals at the Oceanarium in Gulfport, Mississippi stood in the path of one of nature's most vicious storms. Soon, the aquarium's… More →

Did you know that the wheel was invented more than 5,000 years ago? Vehicles have come a long way since then. The fastest train today can go more than 280 mph (450 kph). And there's a jet… More →

From bicycles to hovercrafts, traffic lights to drones, technology has changed everything. Learn how vehicle and transportation technology makes traveling easier with detailed graphics and… More →

The velociraptor was a fierce predator. Though it stood less than 2 feet tall, it was capable of taking down much larger prey. But how did it hunt? What did it eat? This fascinating text… More →

Venezuela is a land of striking beauty. Angel Falls, the highest waterfall in the world, plunges more than 3,000 feet in the Guiana Highlands. Lake Maracaibo, the largest lake in South… More →

In this book, early fluent readers will learn about Venus' unique characteristics. Vivid, full-color photos and carefully leveled text engage young readers as they learn more about the… More →

In this book, early fluent readers will learn about Victoria Falls. Details include how the waterfall formed and what visitors are able to see and do at the site. Real-life photographs and… More →

In this book, early fluent readers will learn about Victoria Falls. Details include how the waterfall formed and what visitors are able to see and do at the site. Real-life photographs and… More →