Today, the City of Bentonville Police Department watches over a community of more than 40,000 residents and provides services that include School Resource Officers, a Bike Team, traffic officers, a SWAT Team, a Negotiations Team, a Bomb Squad, a K9 Team, Computer Forensics, Narcotics Unit, 9-1-1 Dispatch Center, and Animal Control.
Dry water. Dry water. Dry water, an unusual form of powdered liquid, is a water-air emulsion in which tiny water droplets, each the size of a grain of sand, are surrounded by a sandy silica coating. Dry water actually consists of 95% liquid water, but the silica coating prevents the water droplets from combining and turning back into a bulk liquid.
In this experiment, students will find out whether dry ice will cool a beverage faster than wet ice. Regular wet ice is created when water is frozen and turns from a liquid to a solid. Dry ice, on the other hand, is not water at all. It is solid carbon dioxide. However, like water, it is also colorless and odorless--and dry ice will cool your drink just like wet ice. In this experiment, we'll discover which does the job fastest.