Sid the Science Kid: A Cavity Is a Hole in Your Tooth 自然科学启蒙1：你的牙上有个洞ISBN9780061852633

作者：  Huelin

出版社：HarperCollins 2010年03月

简介：

Sid the Science Kid: Everybody, Move Your Feet! 自然科学启蒙1：大家都动起来！ISBN9780061852640

作者：  Huelin

出版社：HarperCollins 2010年04月

简介：

Sid the Science Kid: A Cavity Is a Hole in Your Tooth 自然科学启蒙1：你的牙上有个洞ISBN9780061852633

作者：  Huelin

出版社：HarperCollins 2010年03月

简介：

　　Ever wonder what would happen if you didn’t clean your teethafter every meal? Sid the Science Kid certainly has. With the helpof his family, friends, and teacher, Sid is ready to find out: whyis brushing teeth so important? Read and find out