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Study Guide for Science Quiz #1

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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Term
Definition
altitude   the distance above the Earth's surface  
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line of sight   the straight, unblocked path that is followed by light from an object to an eye (what you can see with your eyes without anything blocking it)  
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horizon   the imaginary line where the sky meets Earth or the ocean  
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point of view   the position where an observation is made from  
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rotation   spinning on axis  
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orbit   the path and length of time one object takes to travel around another object (Earth's path around the sun, moon's path around the Earth)  
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axis   an imaginary axle (stick) that a planet spins on  
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Created by: mmurayama
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