Assess students' ability to design a simple shelter for a toy animal using natural materials (e.g., leaves, sticks, grass, bark), predict which materials will keep it dry and warm, and justify choices through observation or simple tests. Tasks include selecting appropriate materials, arranging a shelter that blocks wind and rain and retains heat, making clear predictions, and explaining outcomes based on material properties (absorption, layering, air pockets). Suitable for Pre-K–Grade 2; evaluates applied design, reasoning, and observation skills.