Providing age-appropriate vocabulary, captivating images, & sound-it-out word pronunciations, Leveled Readers are designed to make learning scientific material easier & entertaining for children. Choose the level where your child feels comfortable reading! Level 2: Animals & Dinosaurs, Level 3: Bugs, Reptiles, Sea Life, & Space. 1 Beginning readers, grades K-1, age range 4-7, 2 Intermediate Readers, grades 2-4, age range 7-9, 3 Proficient Readers, grades 3-5, age range 8-12., ISBN13: B00HX3CP0K ISBN10: B00HX3CP0K Material Type: hardcover