This example shows entropy twice: 1) The dissolved sugar diffuses to an even, high entropy, distribution in solution, and 2) The water in the solution evaporates, spreading evenly around the room as the crystals reappear.
Work Step by Step
Here the trick is to use your imagination to find disorder. The first example is more obvious since the chapter discusses aqueous solutions at length. The second instance requires you to think not just about the reappearing sugar crystals but the water as it disappears.