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dating
(Encyclopedia) dating, the determination of the age of an object, of a natural phenomenon, or of a series of events. There are two basic types of dating methods, relative and absolute. In relative…Great Plains
(Encyclopedia) Great Plains, extensive grassland region on the continental slope of central North America. They extend from the Canadian provinces of Alberta, Saskatchewan, and Manitoba south through…Triassic period
(Encyclopedia) Triassic periodTriassic periodtrīăsˈĭk [key], first period of the Mesozoic era of geologic time (see Geologic Timescale, tablegeologic timescale, table) from 205 to 250 million years…Precambrian
(Encyclopedia) Precambrian, name of a major division of geologic time (see Geologic Timescale, tablegeologic timescale, table), from c.5 billion to 570 million years ago. It is now usually divided…Connecticut
Connecticut State Information Capital: Hartford Official Name: Connecticut Organized as colony: 1636 Entered Union (rank): January 9, 1788 (5th state) Present constitution adopted: 1965 State…diamond
(Encyclopedia) diamond, mineral, one of two crystalline forms of the element carbon (see allotropy), the hardest natural substance known, used as a gem and in industry. The discoveries of 1870–71…Dinosaur Fossils (By U.S. State!)
Top of Page Source: iStockMost people are familiar with their state’s official flower and flag, but did you know that almost every state has an official fossil as well? These state symbols are a…Cretaceous period
(Encyclopedia) Cretaceous periodCretaceous periodkrĭtāˈshəs [key], third and last period of the Mesozoic era of geologic time (see Geologic Timescale, tablegeologic timescale, table), lasting from…moon
(Encyclopedia) CE5 The moon: Near side CE5 The moon: Far side moon, natural satellite of a planet (see satellite, natural) or dwarf planet, in particular, the single natural satellite of the…Trending
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