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The Sun

Vocabulary of The Sun

TermDefinition
Nuclear Fusion The process by witch nuclei of small atoms combine to form a new, more massive nucleus; the process releases energy.
Sunspots A dark area of the photoshere of the sun that is cooler than the surrounding areas and that has a strong magnetic field.
Solar Flares An explosive release of energy that comes from the sun and that is associated with magnetic disturbance on the suns surface.
Prominence A loop of relatively cool, incandescent gas that extends above the photophere and above the suns's edge as seen from Earth.
Corona The rarefied gaseous envelope of the sun and other stars. The sun's corona is normally visible only during a total solar eclipse when it is seen as an irregularly shaped pearly glow surrounding the darkened disk of the moon.
Chromosphere a reddish gaseous layer immediately above the photosphere of the sun or another star. Together with the corona, it constitutes the star's outer atmosphere.
Photosphere The luminous envelope of a star from which its light and heat radiate.
Convection Zone Of a star is the range of radii in which energy is transported primarily by convection. In the radiation zone, energy is transported by radiation.
Radiative Zone A layer of a star's interior where energy is primarily transported toward the exterior by means of radiative diffusion, rather than by convection.
Core The central part of earth below the mantle
Radiation The transfer of energy as electromacnetic waves
Convection The movement of matter due to differences in densities that are cause by temperature variations; can result in the transfer of energy as heat.
Created by: LauraAdames
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