内容简介：
The power of the planet Earth is often unfathomable to people, especially children. Through the spectacular photography in these books, your students can witness the fiery trail of lava as it engulfs a mountainside and see the destruction caused when the earth quakes. Drohan brilliantly explains how and why these disasters occur, and how to stay safe if the reader should experience one. These books won't frighten your students -- they'll fascinate them.