The document describes an engineering design challenge for students to incorporate into their social studies curriculum on Virginia's regions. Students will work in groups to design and create a mystery box containing clues that identify a specific Virginia region. The box must include at least 14 clues across various categories related to the region's products, industries, landforms, water features, animals, and renewable and non-renewable resources. It must also include a QR code on the outside that reveals the name of the region when scanned. Materials like Legos, playdough, and other items are provided for the students to include clues in their designed boxes.