Density : if the weight per "cubic foot" is less than water it floats, if more it sinks.
Not necessarily. Objects sink or float based on their density relative to the density of the fluid they are placed in. In general, dense objects tend to sink while less dense objects tend to float, but shape, size, and other factors can also play a role.
The buoyancy of an object determines if it will float or sink. Objects with a density less than that of the fluid they are placed in will float, while objects with greater density will sink. Additionally, the shape and size of an object can also affect whether it floats or sinks.
Objects float in water if they have a density lower than water, while objects sink if they have a density higher than water. Density is a measure of how much mass per unit volume an object has. This is why objects like wood and plastic, which have lower density than water, tend to float, while objects like metal, which have higher density, tend to sink.
Some things float or sink based on their density. Objects that are less dense than the liquid they are placed in will float, while those that are more dense will sink. Additionally, the shape and size of an object can also affect whether it floats or sinks.
The physical property that determines whether an object will sink or float is its density. Objects with higher density than the fluid they are placed in will sink, while objects with lower density will float.