Your skeleton helps you leap, somersault, and touch your toes-- without it, you would be as floppy as a beanbag There are over200 bones living and growing inside you that make up your skeleton.There are also ligaments and joints that hold your bones together,and cartilage in your bendable parts like your ears and your nose.Learn all about what a skeleton can do -- because this isn't somemake-believe Halloween skeleton, this is the real skeleton insideyou.

The bestselling, fan-favorite chapter-book series sends Jack andAnnie on a chilling rescue mission Merlin the magician and Morgan le Fay have disappeared, and inorder to find them, Jack and Annie journey with their friends Teddyand Kathleen to the Land-Behind-the-Clouds, a frozen kingdom of iceand snow. There they must overcome their fears and solve the IceWizard's riddle, because if Jack and Annie don't complete theirmission in time, Merlin and Morgan will disappear forever Magic Tree House books are "New York Times" bestsellers. Theseries' irresistible mix of magic, myth, history, and mystery hasinspired a love of reading in countless children all over theworld. Find out why with "Winter of the Ice Wizard "

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Holly Keller has created vivacious new paintings for thisfavorite Reading Rainbow title about geology. Readers follow twoenthusiastic rock hounds around the globe as they add to theircollection. Along the way they will learn how sedimentary,metamorphic, and igneous rocks are formed. From the Egyptianpyramids to Roman roads, from the diamond ring on your finger tothe pebbles under your feet'rocks are everywhere!

Illus. in black-and-white. Jack and Annie are in deep troublewhen the Magic Tree House whisks them back to the days of desertislands, secret maps, hidden gold--and ruthless pirates! Will Jackand Annie discover a buried treasure? Will they find out theidentity of the mysterious M? Or will they walk the plank?

Jack and Annie are ready for their next fantasy adventure in thebestselling middle-grade series—the Magic Tree House! Wildfire! That's what Jack and Annie are up against when they are whiskedaway to the land of Australia. And they're not alone! Jack andAnnie must help a baby kangaroo and a koala escape from afire-filled forest. Will they be able to rescue the animals intime? Visit the Magic Tree House website! MagicTreeHouse.com

Branley explains these powerful storms in simple terms youngchildren can understand. He describes the funnel cloud and how itforms and [tells] what to do during a tornado. The book ends on acomfortable note, that the idea is not to panic but to know what todo to ensure safety.

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.

MathMatters（《数学帮帮忙》）系列目前共42册，包括 数字与运算 、 量与计量 、 图形与几何 、 探索规律 、 统计与概率 等内容，几乎涵盖了小学阶段所有重要的数学知识。 MathMatters（《数学帮帮忙》）系列的每一本书都会讲述一个发生在孩子身边的故事，由故事中出现的问题自然地引入一个数学知识，然后通过运用数学知识解决问题。 孩子在主动参与和积极思考的过程中会慢慢发觉，课本上那些既枯燥又抽象的数学知识竟变得如此容易理解和掌握！更重要的是，孩子能深深感受到运用数学知识去解决实际生活中的问题所带来的快乐，从而激发他们学习数学的兴趣，让他们逐渐爱上数学。 这套数学绘本非常适合亲子共读，在阅读过程中，家长可以带领孩子推测情节的发展，探讨解决难题的办法，让孩子在愉悦的氛围中学到知识和技巧。 每个故事后都会用多样的

Bats fly into the spotlight in this exploration of such basics as where the live, how mothers raise their pups, and how they hunt for food. Included as well is a simple plan for a building a backyard bat house.

The ingeniously designed, safe plastic bottle is perfect for catching and viewing creepy crawlies, then letting them go unharmed. This is a bug kit with a conscience! The full-colour book provides field notes to 46 bugs (up from the original 24) arranged by habitat, including pond, forest, ground, leaves, field, flower. Written by entomologist Hugh Danks, the "Bug Book" gives comprehensive information about these fascinating creatures - how they live, what they eat, unusual characteristics, and more.It offers simple, clear guidelines on how to collect and care for bugs, and equally helpful hints on which bugs not to catch. New to the kit are a fold-out bug chart for quick identification, a magnifier to see the critters up close, and a bug explorer's journal to record discoveries. Discover how the whirligig beetle got its name, why fireflies light up, and how water striders walk on water. And then impress parents and friends - here are all the tools kids need to become bona fide bug experts.

Each person in the United States makes almost five pounds oftrash every day. That’s more trash per person per day than peoplemake in any other country! We throw away everything from applecores to bicycles. Sometimes, we even throw away things that couldbe poisonous if they aren’t disposed of properly. And often, wethrow away things we shouldn’t, things we could use again. So, whathappens to all our trash? How does it affect the environment? Andhow can we stop making so much of it? Read and find o

The classroom is decorated as Dinosaur Land, but Ms.Frizzle-inspired by an archeological dig-craves a more authenticexperience. The Magic School Bus turns into a time machine andtransports the class back millions of years to an adventure wherethey learn about dinosaurs, their habitats and diets, and even aMaiasaura nesting ground.

Earle takes children on an undersea journey to explore anamazing "underwater city." She explains the formation of coralreefs and provides information about the conditions needed forsurvival. In addition, the author introduces other animals thatlive in and near the reef and stresses the importance of protectingcorals from pollution. Matthews's ink-and-gouache paintings bringthe colors and variety of this habitat to life. The book alsoincludes a simple experiment that demonstrates how "filter feeders"strain food from the water.

Joanna Cole的大作，风靡全球的一套科学桥梁阅读读物――神奇校车再次出版。在书中，小读者可以跟着主人公一起进行探险，故事情节新鲜刺激，却富有科学性，对话俏皮幽默，在不经意间散落出各种知识，展现出一种严谨、新奇、而又充满乐趣的教学方式，孩子跟随着书中的小伙伴们一起体验原理、学会操作、懂得思考、爱上科学，满足他们与生俱来的求知欲。在不断的求知和探索中，孩子们能够领略到人类的渺小以及科学的强大，对自然抱有敬畏之心，从而慢慢培养他们的人文和科技素养。 这套神奇校车是手绘版，线条细腻，色彩柔和，全套书共六本，并包含时长接近3小时的CD，读者可以选择按书页有断续地朗读或者不间断朗读。 CD时长：2小时47分 《神奇校车》荣获了美国一系列奖项,包括： 全美受欢迎的儿童自然科学图书系列。