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Science Vocabulary Fill Puzzle

                                         
                                         
            15                            
                11         10              
                                         
                                         
                    13                    
                                         
                                         
14                     S         6        
                    2                    
              1                          
                                S        
                4                        
        12     3 S   M B     S   S   9    
        P                           M    
            8       C               A    
                V               N        
                      7 V E     C I T Y  
      5 O R G A N I S M         E   E    
        N       T                   R    

CROSSWORD CLUE (DEFINITIONS)
ACROSS DOWN
1. The amount of electricity in an object that is caused by an excess or deficiency of electrons.
3. The cooperative relationship of two different species.
5. A living thing that is composed of one or more cells.
7. The rate at which the position of an object changes.
8. A particle with a negative charge.
13. The smallest unit of living matter that can function by itself.
14. The ability of an organism to maintain a stable equilibrium.
2. A tiny particle of matter that is the smallest piece of an element.
4. A substance that dissolves other substances.
6. A force that opposes motion.
9. A substance that has mass and makes up all objects.
10. A small piece of a substance that is made up of at least two atoms.
11. The physical matter and existence of an object.
12. A particle with a positive charge.
15. The center of an atom.

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