人们是怎么知道地球是圆的的？你也许会说是哥伦布航海发现的，但其实远在古希腊时期就有了地球是圆的的理论。 从船上的?t望台能看到在甲板上看不到的远方，月相变化，时差的产生，不同地方的人能看到不同的星空等等，这些都表明地球是圆的。 这本英语原版科普绘本提供了丰富有趣的知识，穿越历史，进入太空，启发孩子观察、思考有关地球形状的现象与知识，培养孩子独立思考的精神。 书后有简单的小实验，引导孩子自己动手、观察。
Jack and Annie continue their quest for the secrets of happiness in order to save Merlin. This time, the Magic Tree House takes them to the one continent they haven't visited before: Antarctica. Illustrations.
Holidays Heroes（《美国的纪念日》）系列介绍了美国的纪念日、节日，以及与之相关的历史人物、社会事件等，文字简洁生动，图片丰富多样，适合小学生学习历史，了解美国文化，关注社会进步。免费赠送英语朗读音频，地道的英文表达帮助孩子扩充英语词汇量，提高英语阅读能力。 本册Let sCelebrateThanksgivingDay（《感恩节》）讲的是有关感恩节的知识。书中用两条平行线的叙述方式，分别讲述了印第安人和美国早期批移民的故事，从移民1620年登陆一直讲到1621年他们分享感恩节大餐。
Light is all around you! It comes in many forms： Light from the sun brightens our day, firelight flickers in the night, electric lights fill our homes—and some animals even make the sea glow! With lively illustrations and fun diagrams from Paul Meisel, Light Is All Around Us by Wendy Pfeffer is a fascinating look into the many ways that light brightens our world. This is a Stage 2 Let's-Read-and-Find-Out, which means the book explores more challenging concepts for children in the primary grades and supports the Common Core State Standards and Next Generation Science Standards. Let's-Read-And-Find-Out is the winner of the American Association for the Advancement of Science/Subaru Science Books & Films Prize for Outstanding Science Series.
Fly Guy and Buzz are back with another great nonfiction book! Award-winning author/illustrator Tedd Arnold brings nonfiction to life in this engaging nonfiction reader! During a visit to a space museum, Fly Guy and Buzz learn all about planets, space crafts, space suits, and even dirty snowballs （i.e. comets!）! With straightforward fun facts, humorous illustrations of Fly Guy and Buzz, and vivid photographs throughout, this book is sure to be a hit with budding astronauts everywhere! *HOLOGRAPHIC FOIL ON THE COVER!*
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!
There are forces at work whenever you throw a ball, run up the stairs, or push your big brotheroff the couch. Want to learn more about the forces around you? Read and find out!
