Conrad J. Storad 
Uncovering Earth’s Crust [EPUB ebook] 

Audisee(R) e Books with Audio combine professional narration and text highlighting for an engaging read aloud experience! The outside layer of our planet is an active place. Earth’s crust is always growing and changing. But do you know how Earth’s crust forms? And what happens when its plates shift suddenly? Find out more about the moves that make mountains and ocean ridges in this interesting book!