價格：免費
更新日期：2017-02-09
檔案大小：63 MB
目前版本：1.1
版本需求：需要 iOS 5.1.1 或以上版本。與 iPhone、iPad 及 iPod touch 相容。
支援語言：英語
Hydi Gets an X-Ray - A new Perios animated story reader for children age 5+.
In this Perios story, Hydi decides to visit her friend, Helen, an Aerogen. She travels through Perioland and sees the Perios in their home regions. But when she tries to pass through the Halogen territory she runs into trouble.
In the first story, readers learn that Perios have protons, neutrons and electrons inside them.
Age Range: 5+
Grade: K-4
Pages: 21
支援平台：iPhone, iPad