". . . an excellent teacher resource to help expand the minds of budding scientists."
—Tower Hill Botanic Garden
". . . 216 pages of information and activities about worms, soil, bacteria, decomposition, recycling, and related topics. This can serve as the foundation for a significant science unit study that crosses over into art, reading, math, geography, language, and history."
—Valerie Thorpe, Cathy Duffy, Christian Home Educator's Curriculum Materials