The return of the microwave!
A natural follow-up to the uses of the microwave is the process at which it warms everything else around it. (Or burns my tongue, which does sometimes occur)
What is stored within the scalding liquid is energy, and a huge amount of it (because of water’s relatively high specific heat) When it comes into contact with another object that is cooler than it, conduction. Thus, when it comes in contact with my tongue, conduction!
When the water is hot, its volume is increased (oh so slightly) because of the increased temperature. This causes the density of water to decrease and explains why hot water rises. If water did not change volumes what-so-ever, would that mean that the temperature of any body of water would be the same throughout?
It was cooked by changing heat into work.
Side fact: The rate at which a body changes temperature is directly related to the difference between the temperature of the environment and the temperature of the body.
dT/dt = k(TempEnviro – TempBody)
Taking the integral of both sides gives an equation like this:
Temperature = -e^(kt) + Temperature(original)
Physics Will Always Triumph 