WHY do salt and sugar look the same? If you took a magnifying glass and looked at both the salt and sugar, they wouldn't look the same. The sugar is made up of large, hard-to-define crystals, while the salt is made of tiny cubed crystals. When salt and sugar are in large pieces, they are clear. They are clear because they reflect light. When they are broken into tiny pieces, they scatter some of the light, while also reflecting some of it. This makes both look like white powders. If you'd like to make a giant salt crystal, fill a glass with warm water, and put as much salt in the water as it can absorb and cover it with a tissue. In a week, you'll have big salt crystals!