Displacement is a method used to find density associated with Archimedes' principle, which states that when an object is immersed in a liquid, it will displace its volume. In this experiment, displacement was used to find the volume of a group of small, multi-colored, smooth, round beads with a large hole in the center. After determining 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, making a total of twelve times for the group. The second method used to determine pearl density was flotation. Flotation is associated with the principle of buoyancy. Buoyancy states that an object that floats in the middle of a solution must have the same density. In this experiment, a ball of the same type used in the previous experiment was used with three solvents to make the ball float in the middle of the solution, which showed that it had the same density, and then took the volume of the solution. . Floatation was used for two trials for each individual, making a total of six trials for the entire group.