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Vocab. words

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
        Help!  

Term
Definition
atom   a basic unit of matter  
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molecule   when two or more atoms join together  
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electric current   the movement of positive or negative electric particles  
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open circuit   when electrons can't flow  
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electricity   a form of energy  
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electron   a subatomic particle with a negative charge  
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conductor   materials that let electricity flow through easily  
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insulator   materials that blocking the flow of electricity  
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series circuit   when there is only one path from the source  
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peralle circuit   when there are many paths from the source  
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