Amazon.com description: Product Description: Rocks are constantly changing form through weathering, heat, pressure, and erosion. Although rocks are constantly changing, the process can take millions of years! Over time different types of rocks form, deconstruct, and recycle. Find out just how amazing rocks are by diving into the pages of this exciting book! Vibrant, colorful images and photographs fill the pages paired with high-interest informational text, fun facts, an easy-to-navigate table of contents, and a helpful glossary and index. To bring concepts to life, a Think Like a Scientist activity that supports STEM instruction is included at the end of the book.