Explore recycling, water conservation, eco-friendly homes, hydroponic gardens, and vertical gardens with this Environmental Design STEM PBL bundle for Grades 4–8, featuring printable green living projects, worksheets, and design challenges aligned with NGSS. What is an eco-friendly home? How can we grow food without soil? How can small changes at home and school make a big difference?This collection combines Reduce, Reuse, Recycle, Hydroponic Gardens, Water Conservation, Eco-Friendly Houses, an