Perfect for the first week (back to school or new semester), Biology introductions, and establishing routines for classroom management. Bell Ringer, Get Started, Engage, Do Now... no matter what you call it, those first few minutes of class should be routine. Whether you are covering Properties of Water, Macromolecules, Characteristics of Life, students should enter, get situated, and start working on content relevant material. These Requirements for Life Warm-up pages are designed to print tw