Phase Changes in a Chemistry Lab

Last week, we prepared for our upcoming unit in chemistry by performing an experiment with dry ice.  Students observed Mr. Thompson’s demonstration of  how dry ice is frozen carbon dioxide that happens to sublimate.  A unique phase change for our class to observe and one that was a lot fun!

Sublimation with dry ice.
Students popping soap bubbles that contained trapped CO2 from  the dry ice sublimation.
Students popping soap bubbles that contained trapped CO2 from  the dry ice sublimation.

Students popping soap bubbles that contained trapped CO2 from  the dry ice sublimation.