Salt & sugar lab

This week, we did a lab which involved salt, sugar, and fire. First we would get some sugar and salt and put them in separate cups. We then got test tubes to put the sugar in. We then put the test tube over the Bunsen burner with the sugar in it. The sugar melted and turned into a dark liquid. We then put salt into a test tube and then put that over the fire, and nothing happened. So it explains that sugar can be melted and salt cannot.