1.Fill each cup with water 2.Add the same amount of ice to each (about four to five cubes, depending on sized of cups). 3.In the cup labeled "salt", sprinkle on a tablespoon of salt. Do not stir 4.Immediately sprinkle a tablespoon of sugar into the cup labeled "sugar". Do not stir. 5.Start stopwatch 6.Note down the amount of time it takes for the ice to completely melt for each cup . 7.Clean out the cups and repeat experiment three times or more , always keeping careful notes. 8.Analyze this data . figure out the average time it takes for Ice to melt in plain water, water with salt added and water with sugar added. 9.For further evaluation , try using different amounts of salt. feel free to experiment with other substances as well, like rubbing alcohol or sand