Heat the cell, out of its box, until it reaches about 45 degrees Celsius. Monitor how fast the heat cell cools down. Try the same thing with the heat cell in the insulation block and with other insulation systems of your own invention.
As you heat the cell with the battery, monitor the electrical energy input with the Voltage/Current probe as well as the temperature with the FastResponseTemperture probe. Then compare the electrical energy that is supplied by the battery with the heat energy that is measured in the heat cell. Do you think they should be the same? The electrical energy is displayed directly on the energy graph. The heat energy is:
Energy in joules = 10 x (temperature change in degrees Celsius)
As you heat the cell with the battery, monitor the voltage of the battery. It should drop slowly. What do you think is happening? Where is the battery energy coming from? Do you think the battery could heat the cell forever?
Put the heat cell in other things, like water or clay, and heat them. Explore the idea of heat capacity. How much heat energy is needed to heat up different materials?
