Calvert 1st Grade Science begins the process of teaching important principles of observation which will in turn assist children as they learn about the physical universe. Ten colorful worktexts present lessons on the human body, the five senses, animals, plants, energy, health, machines, and more. Making science both easy and fun, this course includes an essential two-part teacher's guide, which consists of general teaching resources, step-by-step teaching instructions, answer keys, alternate tests, equipment lists, and lists of additional homeschool resources, activities, and experiments.