Grade 6 - 9

Working out gives us the energy to complete everyday tasks without feeling tired. Explore more about physical fitness with content tied to the curriculum of upper-elementary and middle school 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 →

Welcome, Agent 359. This file is full of top-secret information about planets. Learn about the different types of planets, what they can be made of, and explore the planets in our solar… 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 →

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 →

With cards, video games, and movies, Pokémon fans have a lot to love about this brand! In this title, readers are introduced to the history of Pokémon, including favorite games, characters,… 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 →

Red foxes and fishers are well adapted to hunting in the North American woodlands. If these two predators fought, would the red fox's stealthy ambush claim victory? Or would the fisher's… More →

All living things need to make more living things. It's how we keep our world full of birds and bees, plants and people. Whether sexual or asexual, each living thing has developed a system… More →

Water floods through cities along coastlines and islands all around the world. And the rising water has already started pushing people from their homes. What on Earth is causing these rising… More →