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Chapter 3

The Solar System

geocentric an earth centered model
heliocentric a sun centered model
ellipse an oval shape, which may be elongated or nearly circular
core the central region of the sun, where nuclear fusion takes place
radiation zone a region of very tightly packed gas where energy is transferred mainly in the form of electromagnetic radiation
convection zone the outer most layer of the sun's intension
photosphere the inner layer of the sun's atmosphere
chromoshere the middle layer of the sun's atmosphere
corona the outer layer of the sun's atmosphere
solar wind streams of electrically charged particles
sunspots areas of gas on the sun's surface that are cooler then the gases around them
prominence huge reddish loops of gas
solar flare an eruption of gas from the sun's surface that occurs when the loops in sunspots regions connect
terrestrial planets the name often given to the four inner planets (Mercury, Venus, Mars, Earth)
greenhouse effect the trapping of heat by a planets atmosphere
gas giant Jupiter, Saturn, Uranus, Neptune, larger and more massive then Earth don't have solid surfaces
ring a thin disk of small particles of ice and rock
What was a scientist and his discovery? Galileo and heliocentric
small, dense, rocky surface Characteristics of Inner Planets
Created by: mjbernhardt3