Dry ice is the solid form of carbon dioxide. It is a white, powdery substance with a temperature of -109.3 degrees Fahrenheit (-78.5 degrees Celsius). Dry ice is used to keep things cold, such as food and drinks. It is also used in science experiments and industrial applications.
Dry ice is important because it can keep things cold for a long time. It is also relatively inexpensive and easy to use. Dry ice has been used for over 100 years, and it is still a valuable tool for keeping things cold.