Conductivity is defined by "The American Heritage Dictionary" as, "The ability or power to conduct or transmit heat, electricity, or sound."
Electrical conductivity is defined as the ability to allow electrons to flow from one object to another. The amount of electrons that can flow is equal to how high or low the resistance to conducting electricity is for a particular object.
Thermal conductivity is the transfer of heat from a more energetic object to a less energetic object, which is essentially a transfer of high energy from one object to another.
Objects that are the best conductors of electricity, such as aluminum and silver, are also the best conductors of heat. This is because there is a shared electron in motion among the atoms of the metal, and as long as that electron does not stop, it transfers the heat and electrical charge until it bumps into another electron.
Sound is the result of how fast or slow an object vibrates. This vibration creates high or low frequency sound waves, depending on the speed of vibration. Solid objects conduct sound 15 times the speed of air, and water conducts it four times greater than air, which is 6,100 feet per second.