Grade 6 - 9

The trembling ground frightened pandas in China's Wolong National Nature Preserve. The pandas scrambled up trees and into hiding places as the earthquake toppled structures and ripped apart… More →

The parasaurolophus was a duck-billed dinosaur famous for its long crest. Scientists believe the crest made a sound like a horn! This high-interest text explores the fascinating… More →

When peregrine falcons and red-tailed hawks clash, fighting takes flight! These speedy fliers are both adept at catching and piercing their prey with sharp talons. What would happen if they… More →

Piranhas have strength in numbers. Arapaimas pack a deadly bite. Which animal is the most deadly? Action-packed text and vibrant photos combine to show off each animal's fighting strengths in More →

What does a stretch of rolling, grassy hills have in common with a flat, sandy desert? They are both plains. These landforms cover about a third of Earth's land though they can look very… More →

From mighty trees and tiny daisies to feathered birds and scaly fish, learn how organisms survive in their habitats. Uncover the secrets of photosynthesis, reproduction, locomotion, and meet… More →

Plateaus stretch flat for miles and miles before dropping off with sharp sides that tower above the land around them. How do these elevated landforms take shape? Explore more about plateaus… More →

Plate tectonics shape Earth as we know it. Explore more about this important part of our planet with content tied to the curriculum of upper-elementary and middle school students and… More →

Plesiosaurs lived more than 200 million years ago! What were their lives like as they swam through the world's ancient oceans? This hi/lo title explores that question through leveled text and More →

Dolphins travel, hunt, and play together. They can also work together to save people from harm! When lifeguard Rob Howes took three others out on a training swim, he had no idea that an… More →

Polar bears are the top predators of the Arctic. Walruses are mighty beasts with many defenses. In a fight, which one would come out on top? Readers of this high-interest title will learn… More →

Sometimes, small predators are the most vicious. Praying mantises and black widow spiders have unique weapons to take down their prey. Readers will discover how these two animals use their… More →