This document describes a procedure for testing sugars using Fehling's solution. It contains the following key points: 1) Fehling's solution can be used to distinguish between reducing and non-reducing sugars. When a reducing sugar is added to the solution and heated, it will reduce the copper ions, turning the blue solution green or red. 2) The procedure involves adding different sugars (glucose, sucrose, lactose, maltose, starch) to labeled test tubes with Fehling's solution and heating to observe any color changes. 3) Starch is first hydrolyzed using hydrochloric acid to break it down into its glucose units before testing with Fehling's