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chapter 10

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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orbit   the path taken by an object revolving around another  
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sphere   a round,three-dimensional object  
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axis   imaginary vertical line around which earth spins  
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rotation   spinning of the earth on its axis  
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revolution   earths yearly orbit around the sun  
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ellipse   an elongated,closed curve  
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solstice   is the day when the sun reaches its greatest distance north or south of the equator  
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equinox   occurs when the sun is directly above earth's equator  
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mantle   portion of the interior of a planet or moon lying between the crust and the core  
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moon phase   are different forms that the moon takes in its appearance from earth  
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new moon   when the moon is between the earth and the sun  
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waning   less of the illuminated half of the moon  
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full moon   occurs when all of the moon's surface is facing earth reflecting light  
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solar eclipse   occurs when the moon moves between the sun & the earth & cast its shadow over part of earth  
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maria   flat regions  
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lunar eclipse   when earth's shadow falls on the moon  
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comet   space object orbiting the sun formed from dust and rock particles mixed with frozen water,methane,& ammonia  
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impact basin   depression left behind by an object striking the moon  
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waxing   more of the illuminated half of the moon  
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Created by: pajamagirl
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