Thermal Resistor (NTC)- 10 Kohm
A Thermistor ( Thermal Resistor ) – A Resistor That Changes It’s Resistance With Temperature. ( NTC10D-7 ).
They are popular for basic temperature feedback control. For example, if you want to have a fan that turns on when the temperature gets high. You could use the thermistor to feed the base of a transistor, as the temperature rises, the resistance goes down, feeding more current into the transistor until it turns on.