Test students' ability to sort common household items (e.g., paper, cardboard, glass jars, plastic bottles, metal cans, food scraps, soiled napkins) into recyclable, compostable, or trash categories and to give a simple, age‑appropriate explanation for each choice using observable criteria (material type, cleanliness, and whether it breaks down). Provide 6–8 items to classify and ask learners to analyze and justify their decisions in one or two short sentences per item.