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Grade 5 D-2 Sci. Def

Chapter 2 The Sun and Other Stars

TermDefinition
photosphere The visible surface of the sun
corona The sun's atmosphere
sunspot A dark spot on the photosphere of the sun
solar flare A brief burst of energy from the sun's photosphere
solar wind A fast-moving stream of particles thrown into space by solar flares
magnitude Brightness of stars
main sequence A band of stars that include most stars of average color
universe Everything that exists—planets
galaxy A group of stars
light-year The distance light travels in one Earth year; about 9.5 trillion km
Created by: scscolts
Popular Earth Science sets

 

 



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