Petrified forests are some of the coolest-looking fossils that scientists find and study. They can tell us so much about the past, including what Earth was like before humans arrived. How do these amazing remains form? Why? Readers can find the answers to these questions within the pages of this book, complete with close-up photographs of petrified wood they might never otherwise see. The age-appropriate narrative supports science class learning and fun fact boxes give readers even more information about these amazing fossils.

Dinosaurs roamed Earth between 230 million and 65 million years ago. That's not only long before the present day, but also long before Homo sapiens were around at all. Without fossils, we might not know anything about these fierce and interesting prehistoric animals. Young explorers will learn how fossils form, the different kinds of dinosaur fossils that scientists study, and just what we've learned from these cool fossil finds. Detailed photographs aid readers' understanding while fact boxes add more context to key science concepts.