Grade 3 - 5

From multicellular and single-celled organisms to towering trees and hairy mammals, learn about living things in their ecosystems. Discover the science of classification, food webs, biomes,… More →

Orthocones were ancient animals with cone-shaped shells. In this hi-lo title, reluctant readers will learn about orthocones body parts, behaviors, and extinction through leveled text and… More →

In Ospreys, beginning readers will learn how these birds of prey dive from great heights to catch fish. Vibrant, full-color photos and carefully leveled text will engage young readers as they More →

Ostriches and cheetahs are some of the world's fastest animals. In this high-low title, reluctant readers will learn what would happen if these two speedy animals crossed paths. Vibrant… More →

Plants can't move away from hungry animals looking for a tasty treat. So, some plants grow pointy prickles, sharp spines, or threatening thorns to keep themselves safe. One poke from these… More →

The moon goes through cycles in the sky while also impacting life on Earth. Explore more about this important partner to our planet with content tied to the curriculum of upper-elementary and More →

In Outback Food Chains, early fluent readers explore the Australian outback biome and the food chains it supports. Vibrant, full-color photos and carefully leveled text engage young readers… More →

Get ready for a visit to the outer limits of the solar system! This low-level nonfiction title uses narrative text and playful illustrations to introduce young readers to the ice and gas… More →

The oviraptor was a small but fierce dinosaur. It used its sharp claws to find food and fight off predators! Readers of this high-interest text will discover what made the oviraptor unique,… More →

In Owls, beginning readers will learn how these birds of prey fly to find food and the physical features that help them hunt. Vibrant, full-color photos and carefully leveled text will engage More →

In Owls, beginning readers will learn how these raptors spot and hear their prey, as well as the physical features that help them silently swoop in to catch it. Vibrant, full-color photos and More →

The pachycephalosaurus, its name meaning "thick-headed lizard," is known for its thick domed skull! In this hi-lo title, detailed illustrations welcome readers into the Late Cretaceous… More →