See and Explain What Happens When Quarters Meet Dry Ice
The name ” Dry Ice” implies that this ice does not melt or have a wet surface to it. The name also makes it sound like it is not at all dangerous. This is incorrect and extreme care must be taken when working with dry ice.
Dry ice is not made from water but rather is the frozen form of carbon dioxide which changes from a gas to solid state at extremely low temperatures ( 109.3°F or -78.5°C ). Dry Ice will sublimate ( start to melt) at a rate of five to ten pounds every 24 hours in a typical ice chest. It is used to ship frozen goods so you may be able to purchase locally with a quick search of the internet or yellow pages.
It is possible to make a block of dry ice from the right type of fire extinguisher but you will need to use safety gloves and glasses and take precautions.
We do not often get the chance to work with such low temperatures and some weird things can happen when it comes into contact with objects. This is especially bad if the object is your skin.
In this video the experimenter place some coins in the dry and with some surprising results that will take some understanding of the physics to explain. I noticed that not all of the coins reacted in the same way and the nickels never seemed to work. So what is happening here?
Lets here your explanation of this cool phenomenon.