The density of pure quartz is 2.65 g/cc. The density of dry sand, like in a bucket, is about 1.65 g/cc, allowing for about 38% void space between the grains.
Similarly one may ask, which is heavier a gallon of water or a gallon of sand?
Sand is heavier than water when the volume of both substances is equal. The density of dry sand is between 80 and 100 pounds per cubic foot, whereas water is 62 pounds per cubic foot. The density of water depends on its temperature.
Is wet sand heavier than dry sand?
So equal volumes of wet and dry sand would not weigh the same; the wet sand would weigh more because it has more mass, the mass of the water in-between the sand and the mass of the sand itself. The dry sand has only the mass of the sand and the air between the grains of sand.