One of the activities was making bubbles with dry ice.
1) Put a chunk of dry ice and a half cup of warm water in a cup.
|2) dip a pipe cleaner into bubble solution|
|3) Slide the pipe cleaner over the mouth of the cup to stretch a film over the opening|
|4) Watch the escaping CO2 gas fill the bubble with fog|
|Or just drop a chunk of dry ice directly into the bubble solution. This will make a foggy foam "grow" out of the cup.|