<human>: How do you determine the melting point of sugar by using a thermometer?
<bot>: To determine the melting point of sugar, you can use a thermometer to measure the temperature at which the sugar starts to melt. You will need to heat the sugar in a saucepan over medium-high heat until it reaches the desired temperature and then take the temperature again with the thermometer. The higher the temperature, the harder the sugar will be.