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9/17/08 solar system

Science test 9/17/08 The Solar System

geocentric a description of the solar system in which all of the planets revolve around earth
heliocentric a description of the solar system in which all the planets revolve around the sun
ellipse an elongated circle, or oval shape, the shape of the planets orbits
inertia the tendency of a moving object to continue in a straight line or a stationary object to remain in place
nuclear force the process by which hydrogen atoms join together to form helium, releasing energy
core the central part of the sun, where nuclear fusion occurs
photosphere the inner layer of the sun's atmosphere
chromosphere the middle layer of the sun's atmosphere
corona the outer layer of the sun's atmosphere
sunspot a dark area on the sun that is cooler than surrounding gases
prominence a loop of gas that protrudes from the sun's surface, linking parts of sun's atmosphere
solar flare an explosion of hydrogen gas that explodes from the sun's surface that occurs when sunspot regions suddenly connect
solar wind a stream of electrically charged particles produced by the suns corona
Created by: gpc1313