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Science- The Sun
| Term | Definition |
|---|---|
| core | the central region of the sun, where nuclear fusion takes place |
| nuclear fusion | the process by which hydrogen atoms join together in the sun's core to form helium |
| radiation zone | a region of very tightly packed gas in the sun's interior where energy is transferred mainly in the form of light |
| convection zone | the outermost layer of the sun's interior |
| photosphere | the inner layer of the sun's atmosphere that gives off its visible light |
| chromosphere | the middle layer of the sun's atmosphere |
| corona | the outer layer of the sun's atmosphere |
| solar wind | a stream of electrically charged particles that emanate (spread out) from the sun's corona |
| sunspots | a dark area of gas on the sun's surface that is cooler than surrounding gases |
| prominences | a huge, reddish loop of gas that protrudes from the sun's surface, linking parts of sunspot regions |
| solar flares | an eruption of gas from the sun's surface that occurs when the loops in sunspot regions suddenly connect |