From the definition of the bouyant force,an upward force exerted by a liquid on a submerged object, the following statements were derived. The deeper an object is, the greater the bouyant force, and a submerged object will displace a volume of water equal to its volume. The apparent weight of an object submerged in water was shown mathematically to be equal to the weight in air minus the weight in water, which is the bouyant force. An example was used to determine the apparent weight of a 3N object in air. This principle was then shown in the lab using a 100g mass, a cylinder of water and a spring scale. From the density of water, and the density found for an object, it was determined whether that object would sink or float, and tested in the lab.