Grades 7-8 Sample Science in the Atomic Age is a laboratory-based, junior high science course that describes our current understanding of atoms, molecules, chemicals that are necessary for life, DNA, and cells. The course describes how cells work together to make tissues, how tissues come together to make organs, and h Memoria Press product: https://www.memoriapress.com/curriculum/science/science-in-the-atomic-age-textbook/