"Constructed teaching data: these values were invented for this activity, not collected in an experiment." Dataset ID, Conditions,"Fresh matched 100 g covered water samples start at 38°C in 20°C surroundings. 12 min; all cups/lids/exposure/readout match. Covered liquid water; cups/lids, mass, starting temperature, duration, exposure and reading procedure match within and across trials. Surroundings stay at the stated room temperature. No ice, phase change, active heating/cooling, direct sunlight or meaningful evaporative cooling. Each trial uses fresh samples. Accuracy is not supplied." Units,{} Paired trial,Sleeve H final °C,Sleeve J final °C 1,32,34 2,31,33 3,32,34