A class of students performed the heat transfer experiment shown in the picture. In the experiment, three plastic dishes were partially filled with equal amounts of dark soil, light soil, and water. Thermometers were placed in each dish, and the dishes were placed under a heating lamp. The substances were left under the heating lamp for ten minutes, and their temperatures were observed and recorded. After recording the temperatures of the substances as they were heating, the students turned the lamp off and recorded the temperatures of the substances as they cooled for ten minutes.


Which method of heat transfer is illustrated in this experiment? Explain your answer.

Which substance do you think had the highest temperature after ten minutes? Explain your answer.

Which substance do you think cooled the slowest? Explain your answer.