变色龙、章鱼和北极狐有什么共同之处?他们改变颜色!在这2级读者中遇到可以改变外表的神奇动物。 这些美丽迷人的照片让我们一探究竟，让我们走进这个神奇的动物世界，它们会根据周围的环境改变自己的外表，也会根据自身的需要去猎食或者保持安全，甚至还有它们的心情!孩子们将了解这些神奇的动物转变的方式和原因。 What do chameleons, octopuses, and arctic foxes all have in common? They change colour! Meet amazing animals that alter their appearances in this Level 2 reader.

Get ready for a walk on the wild side in this image-packed book all about bears! Kids will learn about different kinds of bears, where they live, and what they do. This level 3 reader is written in an easy-to-grasp style to encourage the animal lovers of today and scientists of tomorrow!

The monarch butterfly, one of the most seemingly delicate ofall of nature’s animals, proves to be one of the toughest in thisreader. Making the yearly trip from the Northern United States andCanada to the Oyamel forest of Mexico is no easy task, and it takesfive generations of butterflies in order to do so. Battling coldtemperatures and the threat of starvation, these beautiful insectscomplete an almost 3,000 mile journey over the course of twomonths, only to have to turn and around and head back home.

Welcome to the wacky world of meerkats, where groups of these furry friends team up to survive in the wild. Each meerkat has a job: babysitting the kids, guarding the troops, or foraging for food. Kids will be mesmerized by wonderful photographs and inviting text. This level 1 reader is written in easy-to-grasp text that will help kids learn about these cute critters and the power of teamwork!

Take a dip with turtles in this exciting reader. Packed with beautiful and engaging photos, kids will learn all about these fantastic reptiles. This level 1 reader is carefully leveled for an early independent reading or read aloud experience, perfect to encourage the scientists and explorers of tomorrow!

Discover the world of one of America's most celebrated abolitionists, writers, and orators in this inspirational biography of Frederick Douglass. Kids will learn about his life, achievements, and the challenges he faced along the way. The Level 2 text provides accessible, yet wide-ranging, information for independent readers.

Readers will be inspired by the amazing story of Helen Keller in this informative biography. They will learn all about her life, her achievements, and the challenges she faced along the way. The Level 2 text provides accessible, yet wide-ranging, information for independent readers.

What's that buzzing around? It's a busy bee! With beautiful, engaging, and authentic photos, and accessible text, kids will learn all about these incredible insects in this level 2 reader.

Meet Pope Francis. Born Jorge Mario Bergoglio in Buenos Aires, Argentina, Pope Francis is the first Pope from the Americas. He's also the first Pope to replace a living one! Learn all about the Pontiff in this level 1 reader, carefully leveled for an early independent reading or read aloud experience.

This comical, adorable, and fascinating reader documents the lives of monkeys living in the wild and includes details regarding their behavior, families, and environment. The carefully constructed text guarantees a successful and rewarding reading experience for level 2 readers who are able to read alone, with minor assistance. The photography and extras featured in this title ensure a fun and interactive experience for the reader.National Geographic supports K-12 educators with ELA Common Core Resources.Visit www.natgeoed.org/commoncore for more information.

Explore one of the most recognized figures in American history with this biography of Sacagawea. Kids will learn about her crucial role in the Lewis and Clark expedition and her influential legacy. The level 3 text provides accessible, yet wide-ranging, information for independent readers.

Explore one of the most recognized scientists in the world with this biography of physicist Albert Einstein. Kids will learn about his life, achievements, and the challenges he faced along the way. The level 3 text provides accessible, yet wide-ranging, information for independent readers.

Learn all about insects with Fly Guy and Buzz! Fly Guy and Buzz are ready for their next field trip! And in FLY GUY PRESENTS: INSECTS they go outside to learn all about other insects like Fly Guy! With straightforward text, humorous asides, and kid-friendly full-bleed photographs throughout, young readers will learn lots of fun facts about all sorts of bugs. Award-winning author/illustrator Tedd Arnold really brings nonfiction to life!

The Magic School Bus travels out of this world to check out the facts about stars. Keesha and the rest of the class discover what stars are made of, the difference between a young star and an old star, and much more.

Every year like clockwork, animals both big and small aredriven by a natural instinct to move, in order to survive. On bothland and sea, they fight the odds and the forces of nature tobreed, feed, or lead and carry on for future generations. Thisreader is an introduction to the treacherous trek of the zebra,walrus, and Christmas Island red crab to overcome obstacles thatinclude hungry cheetahs, stinging yellow crazy ants, and even theirfellow species to make the often impossible journey of theirlives.

Fans of Disneyland, Disney World, and all things Disney are sure to enjoy learning all about the fascinating founder, Walt Disney. This new biographic reader reveals the interesting, enchanting life of one of the world's most beloved storytellers and entrepreneurs. Level 3 text provides accessible yet wide-ranging information for fluent readers.

Find out about the shy and rarely seen red panda! This level 1 reader documents the lives of red pandas in their environment. The carefully constructed text and beautiful photographs guarantee a successful and rewarding reading experience for any reader, especially those who love wild animals. 了解这只害羞且罕见的小熊猫！这本一级读物记录了小熊猫在环境中的生活。精心构建的文本和美丽的照片保证了任何读者，尤其是那些热爱野生动物的读者，都能获得成功和有益的阅读体验。

Meet the seafaring adventurers, storytellers, and famous figures of Norse history in this new Leveled Reader, perfect for independent readers and kids who love learning about ancient cultures. Learn how the Vikings lived, worked, and played (...and pillaged!). Explore the rich history, culture, mythology and newest findings of the ever interesting Viking world.

在这本新的《国家地理》读物中，孩子们将学习关于夜空的一切，从月亮到星座再到行星。

Kids will learn all about the exciting lives of wild cats including tigers, leopards, lynx, cheetahs, mountain lions, and more in this new National Geographic Kids Reader. The level 1 text provides accessible, yet wide-ranging, information for beginning readers.