Search
Search results
Displaying 11 - 20
slate
(Encyclopedia) slate, fine-grained rock formed when sedimentary rocks such as shale are metamorphosed by great pressure. Slate splits into perfectly cleaved, broad thin layers; this…shale
(Encyclopedia) shale, sedimentary rock formed by the consolidation of mud or clay, having the property of splitting into thin layers parallel to its bedding planes. Shale tends to be fissile, i.e.,…Hutton, James
(Encyclopedia) Hutton, James, 1726–97, Scottish geologist, chemist, and naturalist. He was initially attracted to chemistry; he entered the legal profession at the Univ. of Edinburgh; turned to…Appalachian Mountains
(Encyclopedia) Appalachian MountainsAppalachian Mountainsăpəlāˈchən, –chēən, –lăchˈ– [key], mountain system of E North America, extending in a broad belt c.1,600 mi (2,570 km) SW from the Gaspé…continent
(Encyclopedia) continent, largest unit of landmasses on the earth. The continents include Eurasia (conventionally regarded as two continents, Europe and Asia), Africa, North America, South America,…How Old Is the Grand Canyon?
The Grand Canyon may be 10 million years older than we thought by Liz Olson Visit our Grand Canyon Slideshow.Photo of the Grand Canyon courtesy of Carol M. Highsmith…Rocky Mountains
(Encyclopedia) Rocky Mountains, major mountain system of W North America and easternmost belt of the North American cordillera, extending more than 3,000 mi (4,800 km) from central N.Mex. to NW…Smelliest Plant
Rafflesia arnoldii Each bloom can be as big as 3 feet wide and can weigh up to 24 pounds. The reddish-brown flower, which emits a revolting odor, is found in Southeast Asia (primarily Borneo and…March 2004
WorldPutin Appoints Prime Minister (March 1): Russian president names Mikhail Fradkov as premier. (March 14): Putin overwhelmingly reelected to a second term. Suicide Bombers Hit Iraqi…Principal Deserts of the World
Deserts are arid regions, generally receiving less than ten inches of precipitation a year, or regions where the potential evaporation rate is twice as great as the precipitation. The world'…Trending
Here are the facts and trivia that people are buzzing about.
