What do you think is happening to particles when something gets hotter? What happens to ice when it is left out of the freezer? Why? What happens to the heat from food when you take it out of the oven? Why does it cool off?

Based on what you learned about particle motion, what was physically happening to the molecules inside those objects as the wand’s temperature increased? Can you describe a moment in the game where energy was being added to a substance, and explain whether that substance was gaining or losing thermal energy at that time? When you placed your heated wand against a frozen obstacle, in which direction did the thermal energy flow? How did you know when the two objects reached a state of thermal equilibrium?