The product is a set of elementary school science textbooks from the Lifepac series, authored by various writers and published by Alpha Omega Publications. Specifically, it includes the Key & Units 4-10 for Grade 1 & 2. These textbooks cover a range of science topics and are designed for use at the high school level. With a focus on practical lessons and hands-on activities, these books aim to engage students in learning about science in an engaging and informative way. Ideal for teachers looking to supplement their curriculum with comprehensive and structured materials. Great condition. Student books 104-110 included with Teacher Guide & answer book.