chptr8 lesson5 Word Scramble
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Question | Answer |
galaxy | a group of star clusters held together by gravity |
milky way | our home galaxy |
spectrum | a band of colors made when light is broken up |
expansion redshift | the absorption lines that result in longer(redder) wavelengths from galaxies moving away from each other as space expands |
big bang | the beginning moment when the universe was very hot and dense, resulting in a tremendous "explosion" |
background radiation | radiation that is left over from the beginning moments of the universe and is coming from all directions of space |
astronomers estime that our own galaxy may contain more than 200billion _____ and that the universe may have as many as 100billion _______ | stars; galaxies |
Galaxies and stars formed as a result of the ___ ____ | big bang |
_____ formed out of the nebula that formed the sun | Earth |
What are the galaxy shapes? | spiral, elliptical, and irregular |
What type of galaxy is the milky way? | spiral |
Created by:
moncheechee19
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