You have caused phase changes in the Sim before. Before you start this new activity, think about how you created these phase changes in the past.
Begin with substance A.
Turn on the kinetic energy and press the play button to start the Sim.
Transfer energy into the substance.
Observe what happens to the molecules. Pay particular attention to the molecules’ kinetic energy.
Answer the first question.
Once the highest energy possible has been reached, begin to transfer energy out of the substance. Pay particular attention to the molecules’ kinetic energy.
Answer the remaining questions.
Describe how transferring energy into the substance affected the speed of the molecules.