Assess early learners' ability to analyze and explain why a puddle disappears by evaluating effects of sunlight (evaporation), wind (evaporation rate), soil absorption (soaking), and drainage (movement away). Scope: identify observable evidence, compare simple scenarios (sunny vs cloudy, windy vs still, sandy vs clay, flat vs sloped), make predictions, and give short explanations based on observations or a pictured scene; include prompts for teachers to probe cause–effect reasoning.