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243 Topic Pages Found in Science and starting with the letter C
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Open Cabbage

leafy garden vegetable of many widely dissimilar varieties, all probably descended from the wild, or sea, cabbage ( Brassica oleracea ) of the family

Open Cactus

any plant of the family Cactaceae, a large group of succulents found almost entirely in the New World. A cactus plant is conspicuous for its fleshy

Open Caecilians

( sēsĭl'ēӘn ), any of the legless, tailless tropical amphibians belonging to the order Gymnophiona (or Apoda). Most adult caecilians resemble

Open Caffeine

Caffeine is the most widely used psychoactive drug in the world. It exists naturally in plants and can also be produced synthetically and added to

Cairns, John, 1922-

Place : United States of America Subject : biography, biology English virologist known for his research into cancer. Cairns was born in Oxford on 21

Open Caldera

Cauldrons Calderas are volcanic depressions, roughly circular in surface plan, with a diameter greater than depth, and representing roof collapse into

Open Californium

( kăl'ĭfôr´´nēӘm ) [from California ], artificially produced, radioactive metallic chemical element; symbol Cf; at. no. 98; mass no. of most stable

Callahan, Daniel, 1930-

US philosopher and medical ethicist. His particular concerns are reflected in the title of the over 30 books he has written or edited, including

Open Callisto

The second largest of the four giant Galilean satellites of Jupiter, with a radius of 2400 km and a density of 1.86 g cm –3 . It is the faintest of


abbr. cal, unit of heat energy in the metric system. The measurement of heat is called calorimetry . The calorie, or gram calorie, is the quantity of