Sciencejan5 Crossword
            
            
            
            
            
            
            
            
 
 
Down: 1) a particle that contains more than one atom joined together by sharing electrons2) goodbye3) the smallest unit of an element that retains the properties of that element Across: 1) anything that has mass and takes up space4) a material that cannot be broken down into any simpler substance5) a substance that forms by the chemical combination of two or more elements
 

 

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