Mass is an measurement of an object.When you measure mas of an object you, can use a balance.Mass is the amount of matter in an object.
Buoyancy is either an object floats or not. If the object floats it means it's buoyant.If not it means that the object is not buoyant in the water.
Density is how packed an object is.Also, the states of matter show density in it.
A conductor is something that will allow heat through it easily. Such as, wires the wires allow heat to go through it easily.
a thing or substance used for insulation