A small child watches you as you stir a spoonful of sugar into a glass of clear lime-flavored drink. The child says she believes
that the sugar went away because it seemed to disappear. How would you explain to the child what happened to the sugar, and how could you show her that you can get the sugar back?
I would explain that by stirring the sugar it would dissolve and go into the drink. I would show her the dissolved sugar by boiling the lime drink and collecting the excess sugar from boiling theliquid
