Buoyancy and density - Rocio Marroquin 12 -
The rule of buoyancy is simple. Objects float if they have a density less than the liquid into which they are submerged. Diet sodas have low densities since they contain no sugar. Furthermore, the buoyant force on an object submerged in a liquid is equal to the weight of the liquid displaced.
Soundtrack - Creative Commons - Finding The Balance - Kevin Macleod - www.incompetech.com