melting

In an effort to align my lessons with the Next Generation Science Standards (NGSS), I have tried to take the content I have traditionally taught, and shift the design to focus on student engagement with the science and engineering practice

A fun experiment to conduct when discussing phase diagrams is the melting of solid carbon dioxide (dry ice).  To perform this experiment, place small pieces of dry ice (carbon dioxide) in a plastic pipette, seal with a pair of pliers, and position the bulb of the sealed pipette in a beaker of water.  Then sit back and watch what happens!