Astronomy Ch.7 (The Sun) Crossword
                                                        
                                                        
                                                        
                                                        
                                                        
                                                        
                                                        
                                                        
                                                        
                                                        
                                                        
                                                        
                                                        
                                                        
                                                        
                                                        
                                                        
                                                        
                                                        
                                                        
                                                        
                                                        
                                                        
                                                        
                                                        
                                                        
                                                        
                                                        
 
 
Down: 2) matter ejected from the sun's corona in powerful surges guided by magnetic fields 3) a series of three nuclear reactions that builds a helium atom by adding together protons. the main energy source in the sun 5) a neutral, massless atomic particle that travels at or nearly at the speed of light7) rapidly moving atoms and ions that escape from the solar corona and blow outward through the solar system8) very large convective features in the sun's surface 10) a small, flamelike projection in the chromosphere of the sun 11) matter ejected from the sun's corona in powerful surges guided by magnetic fields 12) the rotation of a body in which different parts of the body have different periods of rotation. this occurs in the sun, the Jovian planets, and the disk of the galaxy14) one of the four forces of nature, the strong force binds protons and neutrons together in atomic nuclei15) the bright visible surface of the sun16) a magnetic region on the solar surface that includes sunspots, prominences, flares, and the like17) the fine structure of bright grains covering the sun's surface21) eruption on the solar surface. visible during total solar eclipses 22) the splitting of spectral lines into multiple components when the atoms are in a magnetic field 26) an isotope of hydrogen in which the nucleus contains a proton and a neutron28) on the sun, the faint outer atmosphere composed of low-density, high temperature gas31) a solar prominence, seen from above, silhouetted against the bright photosphere33) the glowing display that results when a planet's magnetic field guides charged particles toward the north and south magnetic poles, where they strike the upper atmosphere and excite atoms to emit photons Across: 1) circulation in a fluid driven by heat. hot material rises and cool material sinks4) a period between 1645 and 1715 of less numerous sunspots and other solar activity 6) a photograph (usually of the sun) taken in the light of a specific region of the spectrum -- for example, an H filtergram9) a model of the sun's magnetic cycle in which the differential rotation of the sun winds up and tangles the solar magnetic field in a 22 year cycle. this is thought to be responsible for the 11-year sunspot cycle13) the region inside a star where energy is carried outward as rising hot gas and sinking cool gas 18) relatively dark spot on the sun that contains intense magnetic fields 19) one of the four forces of nature, the weak force is responsible for some forms of radioactive decay20) a telescope designed to photograph the inner corona of the sun23) a graph showing the latitude of sunspots versus time, first plotted by W.W. Maunder in 190424) the process by which a rotating, convecting body of conducting matter, such as Earth's core, can generate a magnetic field25) the antiparticle of the electron 27) the network of small magnetic loops that covers the solar surface29) a violent eruption on the Sun's surface30) reactions that join the nuclei of atoms to form more massive nuclei32) the study of the interior of the sun by the analysis of its modes of vibration 34) reactions that break the nuclei of atoms into fragments 35) the electrostatic force of repulsion between bodies of like charge, commonly applied to atomic nuclei36) a measure of the energy output of the sun; the total solar energy striking 1 meter squared just above Earth's atmosphere in 1 second37) the region inside a star where energy is carried outward as photons 38) orientation and strength of a magnetic field's manifestation as north and south poles. also applies to an electric field's manifestation as positive and negative charges 39) on the sun, the merging of magnetic fields to release energy in the form of flares
 

 

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