Columbia Encyclopedia

Search results

500 results found

water

(Encyclopedia)CE5 A. Water molecule (black circles represent valence-shell electrons) B. Structure of ice: Each oxygen atom (white circles) is bonded to four other oxygen atoms by hydrogen bonds, the hydrogen at...

Columbia, river, Canada and the United States

(Encyclopedia)Columbia, river, c.1,210 mi (1,950 km) long, rising in Columbia Lake, SE British Columbia, Canada. It flows first NW in the Rocky Mt. Trench, then hooks sharply about the Selkirk Mts. to flow S throug...

Quiriguá

(Encyclopedia)Quiriguá kērēgwäˈ, kērēwäˈ [key], city of the Classic epoch of the Maya, E Guatemala. It is famous for its zoomorphics. Its stone steles have fine hieroglyphs. Near the ruins the United Fruit...

Great Lakes, North America

(Encyclopedia)Great Lakes, group of five freshwater lakes, central North America, creating a natural border between the United States and Canada and forming the largest body of freshwater in the world, with a combi...

Mesolithic period

(Encyclopedia)Mesolithic period mĕzˌəlĭthˈĭk [key] or Middle Stone Age, period in human development between the end of the Paleolithic period and the beginning of the Neolithic period. It began with the end o...

Ross Sea

(Encyclopedia)Ross Sea, arm of the Pacific Ocean, Antarctica, between Victoria Land and Marie Byrd Land. It was discovered in 1841 by Sir James Clark Ross, a British explorer. Ross Island with Mt. Erebus, an active...

elk

(Encyclopedia)elk, name applied to several large members of the deer family. It most properly designates the largest member of the family, Alces alces, found in the northern regions of Eurasia and North America. In...

Vatnajökull

(Encyclopedia)Vatnajökull vätˈnäyöˈko͝ol [key], glacier, c.3,150 sq mi (8,160 sq km), SE Iceland; largest glacier in Europe. At an elevation of from 4,200 to 6,100 ft (1,280–1,860 m), it covers a huge volc...

curling

(Encyclopedia)curling, winter sport, similar in principle to bowls and quoits (see horseshoe pitching), played on an ice court called a sheet by teams of four. Each player hurls a squat, circular stone—weighing 3...

Villarrica volcano, Chile

(Encyclopedia)Villarrica vēˌyärēˈkä [key], active volcano, 9,338 ft (2,847 m), Cautín prov., S central Chile, in the Andes on the SE shore of Lake Villarrica, 60 mi (97 km) SE of Temuco. It is protected by V...