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i dont know but it was homework

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
HR Diagram   A graph that shows the temperature of stars  
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Main Sequence Star   the part of the graph where it shows when higherin temperature and brightness  
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White Dwarf Star   Small stars located on the lower left of the HR Diagram  
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Red Giant star   Large stars located on the upper right of the HR diagram  
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Elliptical Galaxy   Galaxies shaped like large, 3D ellipses  
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Speed   How fast an object is moving  
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Velocity   The rate at which an object changes position  
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Force   A push or a pull  
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Newton   The SI unit of force  
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Direction   The path at which an object takes  
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Nucleus   The center of an atom  
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Proton   Psitive charge in the nucleus of an atom  
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Neutron   A neutral charge within the nucleus of an atom  
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Electron   A negative charge in the nucleus of an atom  
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Beaker   Holds liquids and for ballpark estimates  
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Microscope   measures microscopic objects  
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Ruler   Measures lenghts of objects  
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Apron   Protects your clothes  
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Thermometer   Measures temperature  
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Atom   The smallest particle that elements are made up of  
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