This paired text science unit focuses on helping students answer this Big Question: Can I live without my bones? This unit contains two lessons and a unit assessment. Each lesson includes teacher support pages, a picture dictionary, a minibook, and a variety of written and oral activities, including reading comprehension, close reading, vocabulary, and text-based writing activities. The minibooks in this unit are: Jacob's Arm (Level D) and How Bones Work (Level F). An answer key is also included.