You can't "breathe in" dry ice, it's a solid.
It's solid carbon dioxide, so if you were to breathe in the fumes from it, the same thing would happen as if you breathed in carbon dioxide. Except that it's probably also quite cold. If you didn't also breathe in sufficient oxygen, you would suffocate.
Very short exposures to dry ice will produce a sensation of cold, but no lasting damage. However, long exposures can cause frostbite and result in tissue death.
It will burn the skin - in much the same way as something hot would. Dry ice is super-cold carbon dioxide gas.
burns
When you put cinnamon it dry ice it adbrutly melts.
When dry ice is warmed at 1 atm of pressure, it goes back to its gaseous state or form.
If a person took dry ice into his mouth, he would kill all the tissue that the dry ice touched, and could possibly die. If you even touch dry ice, it is so cold that it feels like it is burning you. Imagine what it could do to the thin, sensitive tissues in your mouth and throat.
The dry ice will sublime, producing carbon dioxide gas. The gas can cause the soapy water to produce many bubbles, resulting in an interesting display.
It will explode due to a large Expansion of the particles
You will have some dry water sodium. Salty dry ice.
When you put cinnamon it dry ice it adbrutly melts.
It exploits
Rather than melts, dry ice evaporates. This process is called sublimation and happens at a slower rate than the melting of water ice.
Dry ice is a solid form of any gas
it foams
The vapor created is not from the dry ice itself, nor is it from the water bucket you're probably putting it in. The vapor comes from water vapor in the air that is condensing because of the cool air. It's like what happens when you breathe on a cool mirror.
the dry ice in a way eats up your skin cells.
dry ice is carbon di oxide when pressure is decreased it becomes gas
It gets really cold.
Dry ice decreases in size, because it is sublimating. This means it is turning from a solid in to a gas. Where as regular ice melts in to a puddle of liquid water, dry ice evaporates in to CO2 gas.
When dry ice is warmed at 1 atm of pressure, it goes back to its gaseous state or form.