Shelly Buchanan 
Our Ever-Changing Environment [PDF ebook] 

Teach students about the different natural ways that the Earth is constantly changing. Readers will learn about earthquakes, volcanoes, water and wind erosion, and more! Colorful images, supporting text, a glossary, table of contents, and index all work together to engage readers and help them better understand the content. This informative, colorful book uses primary sources to captivate readers as they learn social studies topics.