Hydi Gets An X-Ray by Perios app for iPhone and iPad

4.4 ( 7504 ratings )

Education Book
Developer: Direct Alloys LLC

Free

Current version: 1.1, last update: 6 years ago
First release : 09 Jun 2016
App size: 60.08 Mb

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