Grade 4

For over 20 years, Undertaker has been an almost unstoppable force in WWE. He has collected a record 21 WrestleMania wins, and that's just one accomplishment! When Undertaker eventually makes More →

In this book, readers will learn about the unique and defining features of the United Arab Emirates. Vibrant, full-color photos and carefully leveled text will engage young readers as they… More →

There's a world of tiny creatures that exists right before our eyes--if only we could see them. From fur-dwelling fleas and biting bedbugs to head lice and fruit flies, humans are surrounded… More →

In this book, early fluent readers will learn about Uranus' 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 how the U.S. Constitution was written, what the seven Articles in the document say, how the Constitution is amended, and how it guides our… More →

Can we meet today's energy challenges with clean, cheap, renewable sources of energy? Yes! And one of the solutions is right under our feet. Using Earth's Underground Heat uses clear, simple… More →

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The Utahraptor is the official state dinosaur of Utah! This ferocious predator stomped across the earth during the Cretaceous Period. Readers of this high-interest text will learn all about… More →

Vaccines have been used for more than 1,000 years! The first vaccine was made to protect people against smallpox. Today, vaccines help protect people from many diseases and illnesses. This… More →

In Vaccines, readers will learn about the science behind the discovery and development of vaccinations. Vibrant, full-color photos and carefully leveled text will engage readers as they learn 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 →

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 →