What kinds of rocks have sparkles inside them? Side By Side is a nonfiction series that is perfect for reading together, this book features simple, predictable text for beginner readers accompanied by more difficult text and vocabulary for grownups to read aloud. So find a cozy place to curl up and enjoy taking turns reading- side by side! What type of rock starts inside a volcano? What kinds of rocks have sparkles inside them? Find out the answers to these questions and more in this amazing book about rocks!.