| A | B |
|---|
| nuclear fusion | process by which nuclei of small atoms combine to form a new, more massive nucleus; process releases energy |
| radiative zone | zone of the sun's interior that is between the core & the convective zone; in which energy moves by radiation |
| convective zone | region of the sun's interior that is between radiative zone & photosphere; in which energy is carried upward by convection |
| photosphere | the visible surface of the sun |
| chromosphere | the thin layer of the sun that is just above the photosphere; glows a reddish color during eclipses |
| corona | the outermost layer of the sun's atmosphere |
| sunspot | a dark area of the photosphere of the sun; cooler than the surrounding areas & has a strong magnetic field |
| prominence | a loop of relatively cool, incandescent gas that extends above the photosphere |
| solar flare | an explosive release of energy that comes from the sun; associated with magnetic distrubances on the sun's surface |
| coronal mass ejection | a part of coronal gas that is thrown into space from the sun |
| aurora | colored light produced by charged particles from the solar wind and magnetosphere |
