Final answer:
The kink in the thermometer restricts the flow of liquid and helps maintain the highest temperature reached during measurement, making reading temperatures easier.
Step-by-step explanation:
The kink in the thermometer plays a crucial role in making the process of reading temperatures easier.
The kink is designed to restrict the flow of liquid, such as mercury or alcohol, within the thermometer.
This restriction helps to ensure that the liquid stays at the highest temperature reached during measurement, even when the thermometer is removed from the heat source.