1. The aim was to determine the characteristics of a thermistor by measuring its resistance at different temperatures. 2. A circuit was set up using a thermistor, 22 ohm resistor, 9V battery, and multimeter. The thermistor's resistance was measured at room temperature and as its temperature was increased and decreased. 3. Analysis of the results showed that the thermistor's resistance increased as its temperature increased and decreased as its temperature decreased, indicating it was a positive temperature coefficient thermistor.