Cambridge Secondary (7-9). Stage 9. MCE Science. Workbook - Unit 10: Transfer of Thermal Energy - Question 13

Paint one metal can black and the other white. Let the paint dry completely. Fill each can with an equal amount of water and place a thermometer in each can. Position both cans under the heat lamp at the same distance where they can receive equal amounts of light.



When you do this experiment, what precautions should you take?