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acids and bases

(Encyclopedia)acids and bases, two related classes of chemicals; the members of each class have a number of common properties when dissolved in a solvent, usually water. Another theory that provides a very broad ...

crossword puzzle

(Encyclopedia)crossword puzzle, word game in which words corresponding to numbered clues are put into a grid of horizontal and vertical squares to form intersecting words. The puzzle is solved when a player supplie...

Kootenai, river, Canada and the United States

(Encyclopedia)Kootenai ko͞oˈtĭnā [key], river, 407 mi (655 km) long, rising in the Rocky Mts., SE British Columbia, Canada. It flows S into NW Montana, NW through N Idaho, then N into Canada. There it flows thr...

Hittite art and architecture

(Encyclopedia)Hittite art and architecture, works of art and structures created by the ancient Hittites The principal architectural remnant of the Hittite civilization is at Boğazköy, where temple structures ...

W and Z particles

(Encyclopedia)W and Z particles, elementary particles that mediate, or carry, the fundamental force associated with weak interactions. The discovery of the W and Z particles at CERN near Geneva, Switzerland, in the...

South, the

(Encyclopedia)South, the, region of the United States embracing the southeastern and south-central parts of the country. Traditionally, all states S of the Mason-Dixon Line and the Ohio River (except West Virginia)...

Comoros, the

(Encyclopedia)CE5 Comoros, the kŏmˈərōs [key], officially Union of the Comoros (2020 est. pop. 869,601), 838 sq mi ...

Bahamas, the

(Encyclopedia)CE5 Bahamas, the bəhäˈməz [key], officially Commonwealth of the Bahamas, independent nation (2020 ...

Supremes, The

(Encyclopedia) Supremes, The, American vocal group, 1962-77. The Supremes were formed in Detroit, Mi., and were originally known as the Primettes—a female counterp...

Ozarks, the

(Encyclopedia)Ozarks, the, or Ozark Plateau, upland region, actually a dissected plateau, c.50,000 sq mi (129,500 sq km), chiefly in S Mo. and N Ark., but partly in Oklahoma and Kansas, between the Arkansas and Mis...