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8th Grade Earth Science

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
        Help!  

Question
Answer
show Nebula  
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what type of galaxy is the Milky Way   show
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show shape/size  
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why does the moon have a lot of craters but the earth does not   show
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show expanding  
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what is a light year   show
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what is the difference between a constellation and a galaxy   show
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what elements make up most of the sun   show
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what causes a cloud of gas and dust to condense   show
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show main sequence  
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what are the inner planet? what are they called?   show
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what are the outer planets? what are they also called   show
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show moving away from each other  
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show it is the closest star to Earth, and it has an average temperature and size  
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What causes a star to emit electromagnetic energy   show
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what is the current proof that the Universe is expanding   show
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show satellites velocity and planet's gravitational pull  
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show has a thick atmosphere made of carbon dioxide and nitrogen which keep the heat in  
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why is the surface of Mercury so hot   show
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show the astroid belt in between Mars and Jupiter  
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Why do scientists think that there once was life on Mars   show
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show a gas cloud; molecular clouds  
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show main sequence-->giant-->white dwarf  
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how do Galaxies that are further away from us compare in speed to galaxies that are closer   show
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Graph the relationship between distance from the Sun and period of revolution   show
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How does the color of the star compare to its temperature   show
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show -tilted at a similar angle -four seasons -polar ice caps  
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show Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune  
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show The average distance between Earth and the Sun  
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Created by: carolinelee26
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