Have fun making a dry ice bubble that will
grow and grow as it fills with fog. This
experiment is a great one for adults to do
with kids. Add water to the dry ice, cover
it with a layer of soapy water and watch
your bubble grow, how big will it get
before it bursts? Give it a try and find out!
What you'll need:
Safety first! Be careful with dry ice as it can cause skin damage if not
used safely. Adults should handle dry ice with gloves and avoid directly
breathing in the vapor.
Dry ice is carbon dioxide (CO2) in its solid form. At temperatures above
-56.4 °C (-69.5 °F), dry ice changes directly from a solid to a gas, without
ever being a liquid. This process is called sublimation. When dry ice is put
in water it accelerates the sublimation process, creating clouds of fog that
fill up your dry ice bubble until the pressure becomes too much and the
bubble explodes, spilling fog over the edge of the bowl. Dry ice is sometimes
used as part of theater productions and performances to create a dense
foggy effect. It is also used to preserve food, freeze lab samples and even to
make ice cream!
By Science Kids