Final answer:
To check temperatures with a bimetallic stemmed thermometer, insert the stem of the thermometer into the substance or environment, observe the scale, and record the temperature measurement.
Step-by-step explanation:
A bimetallic stemmed thermometer uses a two-layered strip made of different metals, such as brass and steel. When heated or cooled, one of the metals expands or contracts more than the other, causing the strip to coil or uncoil. To check temperatures with a bimetallic stemmed thermometer, follow these steps: