Human: How do I determine the melting point of sugar using a thermometer? Assistant: 
To determine the melting point of sugar, use a thermometer to measure the temperature at which the sugar changes from solid to liquid. Start by heating the sugar in a dry pan over medium heat until it melts completely and becomes a clear liquid. Then place the thermometer into the mixture and wait for it to reach its boiling point. The exact temperature will depend on the type of sugar you are using. Once the sugar has reached its boiling point, remove it from the heat and allow it to cool before testing.