Displacement is a method used to find density associated with Archimedes' principle, according to which when an object is immersed in a liquid, it shifts its volume. In this experiment, displacement was used to find the volume of a group of beads, which were small, multicolored, smooth, and round with a large hole in the center. After finding the volume displaced by the beads, the density was calculated by taking the mass of the beads and dividing it by the volume of the beads. The shift was used for four trials for each individual, for a total of twelve times for the group. The second method used to find pearl density was flotation. Buoyancy is associated with the principle of buoyancy. Buoyancy states that an object floating in the middle of a solution must have the same density. In this experiment, a bead of the same type used in the previous experiment was used along with three solvents to make the bead float in the center of the solution, showing that it had the same density, and thus take the volume of the solution. Flotation was used for two trials for each individual, for a total of six trials