Dry ice, sometimes referred to as  cardice  (chiefly British chemists), is the solid form of carbon dioxide. It is used primarily as a cooling agent.Its advantages include lower temperature than that of water ice and not leaving any residue (other than incidental frost from moisture in the atmosphere).It is useful for preserving frozen foods, ice cream, etc., where mechanical cooling is unavailable.t is used primarily as a cooling agent. Its advantages include lower temperature than that of water ice and not leaving any residue (other than incidental frost from moisture in the atmosphere). It is useful for preserving frozen foods, ice cream, etc., where mechanical cooling is unavailable.
Maryland is also called the Old Line State and Free State.The Old Line nickname was given during the Revolutionary War, when 400 soldiers in the First Maryland Regiment fought a British force of 10,000 and helped General George Washington's army to escape.
Audio. The Baltimore oriole is Maryland's official state bird. This popular animal has also been the namesake of the state's professional baseball team, the Baltimore Orioles, since the late 19th century.Male orioles have brilliant orange-golden underparts and shoulder patches, with black wings and a black head.altimore orioles inhabit Maryland and the rest of the eastern United States only in the summer months. (They are also found, less commonly, in the central U.S. and Canada).