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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.
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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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what is the universe doing   show
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show distance light travels in a year  
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show constellation has a few stars, while a galaxy has billions  
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show hydrogen and helium  
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show gravity  
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show main sequence  
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show a planet that lies in the astroid belt. Terrestrial planets  
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show a planet who's orbit lies outside the astroid belt. Jovian planets  
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what are most of the galaxies doing relative to each other   show
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How does our Sun compare to the other stars   show
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What causes a star to emit electromagnetic energy   show
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show when things move away they emit red waves, the galaxies are producing stronger and stronger wavelengths that before  
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what keeps a satellite in orbit around another planet   show
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show has a thick atmosphere made of carbon dioxide and nitrogen which keep the heat in  
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show closest to the sun  
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where did the Asteroids come from   show
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Why do scientists think that there once was life on Mars   show
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What is the name of the beginning formation of a star   show
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show main sequence-->giant-->white dwarf  
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show more distant a galaxy is, the farther it is moving away  
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Graph the relationship between distance from the Sun and period of revolution   show
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show closer to blue = hotter  
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how is mars like earth   show
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order of planets closest to least to the Sun   show
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show The average distance between Earth and the Sun  
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Created by: carolinelee26
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