Dissolve the Sugar in the Glasses
First, we are going to change the density in all of our glass. Line your glasses up, and add one tablespoon of sugar to the first glass, two tablespoons into the second, three tablespoons of sugar into the third glass, and four tablespoons into the fourth glass. Add three tablespoons of water into the four glasses. Keep the fifth glass completely empty.
If your sugar is having a hard time dissolving in the four glasses, add one extra tablespoon into each glass.