The visualization shows molecules from the cup and counter at the instant they touch.

	Green molecule:		cup
	Blue molecule:		counter
	Arrow on molecules:		speed and direction of that molecule. (The speed of the molecule is its kinetic energy.)

The graph shows the temperature of the cup and the counter over time.

Use these tools to explore the visualization:

	Sun:		Heats the molecules.
	Run:		Starts the visualization.
	Reset:		Resets the visualization.
	K.E. Shading check box:		Shows each molecule’s kinetic energy. Red represents high kinetic energy and white represents low kinetic energy.

Procedure

1. Select the sun-shaped tool and click it on the molecules from the cup (the green molecules). Heat the cup molecules to about 60 degrees. (You can check the current temperature on the graph.)
2. Make a prediction
3. Run the visualization and observe the motion of the molecules
4. Repeat with higher or lower temperatures for the cup.