File 1
pdf Please login to download this file.Stars vary in size, mass, temperature and brightness. This resource describes the life cycle of stars and discusses some of their characteristics. This resource is relevant to Astronomy in Physics.
https://web.archive.org/web/20190402002249/http://www.world-builders.org/lessons/less/les1/main.html
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Secondaryنویسنده
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جواز/ دارنده حق چاپ
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