Spin Into Science: Spider Life Cycle & Engineering Challenge (34 pages, Grades 3–8)Bring spiders to life in your classroom with this hands-on STEM and life science resource! Students will explore the fascinating stages of a spider’s life cycle—from egg sac to spiderling to adult—while applying the engineering design process to tackle a real-world spider-inspired challenge. This cross-curricular unit blends science, engineering, and creative problem-solving, making it perfect for NGSS-aligned