Engaging full-color flash cards created to align with classroom curricula and create excitement for learning. How many rings are there around Saturn? What causes an earthquake? How many bones are in a giraffe's neck? With Smithsonian Everything You Need to Know: Grades 2-3 , kids ages 7-9 will learn exciting and interesting facts about Earth and space, plants and animals, geography, history, and health. Each of the 275 fact cards includes colorful photos and illustrations coupled with a fascinating fact. From the solar system to George Washington to volcanoes, each fact card presents educational material in an innovative and engaging format. Inquisitive kids will have hours of fun discovering everything their young minds need to know in this interest-packed fact card set.