Boo Bubbles: 02/11/20

This week we were focusing on thermal dynamics, thermal energy, and the physics of cold. To further our understanding we conducted an experiment that involved the physics of cold. I gained knowledge of dry ice and how to manipulate it. I also learned that dry ice is a solid form of carbon dioxide, and its phase of change is sublimation. We also took a closer look as to why boo bubbles fall instead of float. This is because carbon dioxide is heavier than the surrounding air, and the gas inside the bubble is heavier than the surrounding liquid causing it to fall. Listed below are the materials used. 

Materials:

Dry ice 

Container that can be sealed

Insulated gloves 

Dish soap 

Plastic tubing 

Boiling water

Small cup

Experiment: My partner and I first filled our container with boiling water, then filled our smaller cup with dish soap. Next we placed the plastic tube into the dish soap, then put the dry ice inside of the container and sealed the lid. Once the lid was sealed we were able to see the boo bubbles form. We noticed they were popping rather quickly, so we put a small amount of soap onto the table which allowed them to last longer. The pictures below are from the lab.