Q. What grade levels are covered in the Let's Talk Science series?

A. The series includes five levels designed for Kindergarten through 4th grade. Each book is geared toward a specific grade: Level K for Kindergarten, Level 1 for 1st grade, Level 2 for 2nd grade, Level 3 for 3rd grade, and Level 4 for 4th grade. But there is flexibility within each level to address the needs of children within a 2 to 3 year age span.