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 present information about the universe, including our solar system, and briefly describe the history of space travel and of the science of astronomy.
Learn all about bats with Fly Guy! It's time for a field trip! Fly Guy and Buzz are going into a bat cave to learn all about bats. With straightforward text, humorous asides, and kid-friendly full-bleed photographs throughout, young readers will love learning all about these nocturnal creatures. Award-winning author/illustrator Tedd Arnold really brings nonfiction to life for beginning readers!
关于珍稀动物:假如这个世界再也没有老虎在黑夜中咆哮和行走，没有犀牛在草原上漫步，或是没有鲸鱼在大海里欢歌……《动物好朋友》讲的是各种各样的濒危动物，他们的生存面临着许多危险，其中之一是被人类捕猎、毒杀或追捕。看看动物们自由自在的美好生活，再想象一下没有野生动物的世界将会多么的单调乏味。
Many birds travel thousands of miles each year, migrating between summer and winter homes. Just how they find their way back and forth, sometimes returning to the exact same nesting grounds each year, has puzzled ornithologists for years. Roma Gans details the many theories scientists have proposed to explain the mysteries of migration.
