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unit 3 study guide

QuestionAnswer
what is gravity a force that attracts object towards each other center
what is the age of the universe 13.8 billion year old
what does Ba means billion
what does Ma means million
The HR diagram can show you a star size, stage of life, temperature and more
is a blue star hot or cold hot
star are mostly made out of hydrosen and helium
stars are balls of plasma
ionization means that atom are so energetic that electron are ripped off
stars perform_________ to generate energy nuclear fusion
nuclear fusion is the joining two or more nuclei together to form a single new atom
star can only create up to______ during nuclear fusion Iron
an element is determined by the number of protons in an atom nucleus
a star is truly a star when it can fuse hydrogen into helium
how does a ball of gas get hot enough to begin nuclear fusion the pull of the gravity
Created by: user-1969332
 

 



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