Review of the thermal phenomena:
Objects left for a long time in a room reach the same temperature (room temperature)
Materials conduct heat energy at different rates
Styrofoam conducts heat slowly and is an insulator
Metals conduct heat quickly; metals are conductors
Conductivity: property of a material that refers to how quickly it conducts heat energy
Conductivity is different from density; conductivity refers to how fast energy flows through a material. Density refers to how much “stuff” there is in a given volume.
Hot and cold water reach equilibrium when mixed together.