Collection: 4th Grade

My Secret Enemy: Viruses我的祕密敵人：病毒

Little Eco Detective 3: The human body is so cool! 生態小偵探3：哇！人體原來這麼酷！（附生態小偵探放大鏡）

The Book of Comparison: Sizing up the world around you 圖解超級比一比：用奇妙的比例尺認識全世界

Unbelievable Science 1: Insects measure their body weight 科學不思議1：昆蟲量體重

When Animals Embark on a Migration Journey 當動物踏上遷徙的旅程

What are the teachers doing? 老師都在做什麼？

Little Eco Detective 1:The Amazing Dinosaur Detectives: Amazing Facts, Myths and Quirks of the Dinosaur World生態小偵探1：恐龍跟你想得不一樣？（附生態小偵探放大鏡）

Down Down Down : A Journey to the Bottom of Sea 通往海底的奇妙旅程