Science Essentials Dinosaurshelps explain the world of dinosaurs, the habits in which they lived, and theories about why they became extinct. At the same time, the book reinforces cross-curricula skills. Young learners, from grades one through three, will read lively passages about dinosaurs, strengthen math, reading, spelling, and language arts skills, practice test-taking skills, and play games that reinforce learning. A pronunciation key is located in the front of the book and a dictionary of dinosaur terms at the back. Appealing illustrations, easy-to-understand directions, and varied creative activities make learning about the dinosaurs fun and easy. Science Essentials Dinosaursis the most complete book that offers: Chapters on the Triassic, Jurassic, and Cretaceous Periods. Cutout fact cards and games. Vivid, full-color illustrations to spark the learner's interest. An answer key to measure student performance.