Grade 4

In Magnetism, early fluent readers will learn how magnetism and the physics behind it impacts our universe every day. Vibrant, full-color photos and carefully leveled text will engage young… More →

Statues are carved out of rock. What type of rock are these amazing depictions carved from? Learn all about magnificent metamorphic rocks, including how they form, what they're made out of,… More →

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Lots of amazing things can happen on the movie screen. Dinosaurs, superheroes, and aliens can come to life right in front of us. Do you want to learn the secrets of the screen? Read this book More →

A speedy hunter quietly swims below a group of fish, then jumps up and takes a bite. The mako shark is one of the fastest swimmers in the ocean. It chases other fish for miles until it can… More →

Mammals can be found all around the world. From the fierce lion to the tiny mouse, these animals all seem very different. Now you can learn what they all have in common and discover how to… More →

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In this book, early fluent readers will learn how manatees live and survive in the ocean. Vibrant, full-color photos and carefully leveled text will engage young readers as they learn more… More →

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The flash of color in an African rain forest might not be what you expect. Mandrills have bright faces with long, red noses and blue and cheeks (not to mention the colorful cheeks on their… More →

In this book, early fluent readers will learn how mandrills get their colorful rumps and faces and how their colors help them attract mates, establish rank in their troops, and camouflage in… More →

Mandrills and chimpanzees are strong animals. Which of these primates would win in a fight?  More →