Rocks are all around us. Some rocks on Earth are 4 billion years old! But what are they made of? What are the different types of rock? Readers will learn the answers to these questions and more through easy-to-read text and vivid photographs. An expe... Read more

Rocks are all around us. Some rocks on Earth are 4 billion years old! But what are they made of? What are the different types of rock? Readers will learn the answers to these questions and more through easy-to-read text and vivid photographs. An experiment rounds out the book and provides a hands-on learning experience to encourage deeper understanding. Meets Next Generation Science Standards. Less