Rocks: Hard, Soft, Smooth, and Rough (Amazing Science)

Rating:
Summary: 10 starts
Review: Introduces igneous, sedimentary and metamorphic rocks. The writing is simple and remarkably concise for a book aimed at this age group. For example, "Rocks form in three ways. In the first way, melted rock bubbles up from inside the earth. Then it cools down and becomes hard igneous rock." Colorful and friendly looking book layout. Includes a rock chart, activities and an introduction to Mohs Hardness Scale. There is also a glossary, bibliography, & index.