Read and find out about rocks and rock collecting in this colorfully illustrated nonfiction science picture book.Readers follow two enthusiastic rock hounds around the globe as they add to their collection. Along the way they will learn about geology for kids, including how sedimentary, metamorphic, and igneous rocks are formed. From the Egyptian pyramids to Roman roads, from the diamond ring on a finger to the pebbles under your feet, rocks are everywhere!This is a Level 2...