#$&* course PHY 202 3/29 about 12:15 pm I ran the PhET 13.31 States of Matter. I ran in both modes but primarily played around in the Phase Change mode where the molecules could be increased and the volume could be decreased. I blew the lid off the can by increasing all three properties, volume, temperature, and number of molecules, sometimes in combination. In the first mode, the solid started with all molecules touching together and the gas started with the random scattered throughout.