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vocab words for planets

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Term
Definition
meteor   A streak of light though space  
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asteroid belt   Any of thousands of dense rocky objects in orbit  
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comet   A ball of ice dust,and frozen gases  
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revolution   The movement of an object around another object  
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rotation   The spinning motion of a planet  
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outer planets   gas giant planets found outside of the asteroid belt  
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inner planets   terrestrial planets {earth like} planets that are dense solids  
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gravity   Attractive Force  
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axial tilt   invisible axis that are tilted  
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probe   A robotic spacecraft  
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satellight by astronomers   Any object that revolves around another object  
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Heliocentric Theory   Nicolaus Copernicus idea that the earth planets  
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Geocentric Theory   Aristotle and Ptolemy believed that the earth was the center of the universe  
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tides   The rise and fall of sea levels caused by the combined effect  
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greenhouse effect   is the process by which radiation from a planets atmosphere  
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illuminated   To light up  
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celestial objects   Known collectively by astronomers as celestial bodies  
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lunar eclipse   occurs when the earth is between the sun and moon  
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solar eclipse   occurs during the NEW MOON  
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Autumn   The season between summer and winter  
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equinox   The time and date when the sun passes over the directly  
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solstice   The time and date when the sun is at its greatest distance  
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orbit   travel around  
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diameter   The line going across a circle  
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survivable tempertures   The highest and the lowest Tempertures that humans can stands  
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astronomers   The study of celestial objects  
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